diff --git a/exercises/03.assertions/05.problem.soft-assertions/tsconfig.app.json b/exercises/03.assertions/05.problem.soft-assertions/tsconfig.app.json
index ed23433..af242dc 100644
--- a/exercises/03.assertions/05.problem.soft-assertions/tsconfig.app.json
+++ b/exercises/03.assertions/05.problem.soft-assertions/tsconfig.app.json
@@ -3,7 +3,6 @@
 	"include": ["src/**/*"],
 	"exclude": ["src/**/*.test.ts*"],
 	"compilerOptions": {
-		"lib": ["ES2020", "DOM", "DOM.Iterable"],
-		"jsx": "react-jsx"
+		"lib": ["ES2020"]
 	}
 }
diff --git a/exercises/04.performance/03.problem.test-isolation/.gitignore b/exercises/04.performance/03.problem.test-isolation/.gitignore
deleted file mode 100644
index 7cad749..0000000
--- a/exercises/04.performance/03.problem.test-isolation/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# Ignore the test files for this exercise because
-# they are generated during the setup step.
-/tests/**/*.test.ts
\ No newline at end of file
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-001.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-001.test.ts
new file mode 100644
index 0000000..be5bde0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-001.test.ts
@@ -0,0 +1,3 @@
+test('equals to 1', ({ expect }) => {
+	expect(1).toBe(1)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-002.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-002.test.ts
new file mode 100644
index 0000000..b51d632
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-002.test.ts
@@ -0,0 +1,3 @@
+test('equals to 2', ({ expect }) => {
+	expect(2).toBe(2)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-003.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-003.test.ts
new file mode 100644
index 0000000..3f5a97b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-003.test.ts
@@ -0,0 +1,3 @@
+test('equals to 3', ({ expect }) => {
+	expect(3).toBe(3)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-004.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-004.test.ts
new file mode 100644
index 0000000..67801e0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-004.test.ts
@@ -0,0 +1,3 @@
+test('equals to 4', ({ expect }) => {
+	expect(4).toBe(4)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-005.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-005.test.ts
new file mode 100644
index 0000000..41586e3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-005.test.ts
@@ -0,0 +1,3 @@
+test('equals to 5', ({ expect }) => {
+	expect(5).toBe(5)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-006.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-006.test.ts
new file mode 100644
index 0000000..563a028
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-006.test.ts
@@ -0,0 +1,3 @@
+test('equals to 6', ({ expect }) => {
+	expect(6).toBe(6)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-007.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-007.test.ts
new file mode 100644
index 0000000..e1d887f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-007.test.ts
@@ -0,0 +1,3 @@
+test('equals to 7', ({ expect }) => {
+	expect(7).toBe(7)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-008.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-008.test.ts
new file mode 100644
index 0000000..ad54c0a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-008.test.ts
@@ -0,0 +1,3 @@
+test('equals to 8', ({ expect }) => {
+	expect(8).toBe(8)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-009.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-009.test.ts
new file mode 100644
index 0000000..c4629fb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-009.test.ts
@@ -0,0 +1,3 @@
+test('equals to 9', ({ expect }) => {
+	expect(9).toBe(9)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-010.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-010.test.ts
new file mode 100644
index 0000000..ad01c4a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-010.test.ts
@@ -0,0 +1,3 @@
+test('equals to 10', ({ expect }) => {
+	expect(10).toBe(10)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-011.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-011.test.ts
new file mode 100644
index 0000000..df6ae40
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-011.test.ts
@@ -0,0 +1,3 @@
+test('equals to 11', ({ expect }) => {
+	expect(11).toBe(11)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-012.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-012.test.ts
new file mode 100644
index 0000000..b34bba0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-012.test.ts
@@ -0,0 +1,3 @@
+test('equals to 12', ({ expect }) => {
+	expect(12).toBe(12)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-013.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-013.test.ts
new file mode 100644
index 0000000..1c6f31c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-013.test.ts
@@ -0,0 +1,3 @@
+test('equals to 13', ({ expect }) => {
+	expect(13).toBe(13)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-014.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-014.test.ts
new file mode 100644
index 0000000..50e30a2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-014.test.ts
@@ -0,0 +1,3 @@
+test('equals to 14', ({ expect }) => {
+	expect(14).toBe(14)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-015.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-015.test.ts
new file mode 100644
index 0000000..5278d33
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-015.test.ts
@@ -0,0 +1,3 @@
+test('equals to 15', ({ expect }) => {
+	expect(15).toBe(15)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-016.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-016.test.ts
new file mode 100644
index 0000000..46149b0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-016.test.ts
@@ -0,0 +1,3 @@
+test('equals to 16', ({ expect }) => {
+	expect(16).toBe(16)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-017.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-017.test.ts
new file mode 100644
index 0000000..6654dd3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-017.test.ts
@@ -0,0 +1,3 @@
+test('equals to 17', ({ expect }) => {
+	expect(17).toBe(17)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-018.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-018.test.ts
new file mode 100644
index 0000000..9265180
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-018.test.ts
@@ -0,0 +1,3 @@
+test('equals to 18', ({ expect }) => {
+	expect(18).toBe(18)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-019.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-019.test.ts
new file mode 100644
index 0000000..8520513
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-019.test.ts
@@ -0,0 +1,3 @@
+test('equals to 19', ({ expect }) => {
+	expect(19).toBe(19)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-020.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-020.test.ts
new file mode 100644
index 0000000..a11d24d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-020.test.ts
@@ -0,0 +1,3 @@
+test('equals to 20', ({ expect }) => {
+	expect(20).toBe(20)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-021.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-021.test.ts
new file mode 100644
index 0000000..10703e7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-021.test.ts
@@ -0,0 +1,3 @@
+test('equals to 21', ({ expect }) => {
+	expect(21).toBe(21)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-022.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-022.test.ts
new file mode 100644
index 0000000..0ca1cff
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-022.test.ts
@@ -0,0 +1,3 @@
+test('equals to 22', ({ expect }) => {
+	expect(22).toBe(22)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-023.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-023.test.ts
new file mode 100644
index 0000000..c627008
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-023.test.ts
@@ -0,0 +1,3 @@
+test('equals to 23', ({ expect }) => {
+	expect(23).toBe(23)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-024.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-024.test.ts
new file mode 100644
index 0000000..923860e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-024.test.ts
@@ -0,0 +1,3 @@
+test('equals to 24', ({ expect }) => {
+	expect(24).toBe(24)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-025.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-025.test.ts
new file mode 100644
index 0000000..ad398b2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-025.test.ts
@@ -0,0 +1,3 @@
+test('equals to 25', ({ expect }) => {
+	expect(25).toBe(25)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-026.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-026.test.ts
new file mode 100644
index 0000000..b7a2bd3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-026.test.ts
@@ -0,0 +1,3 @@
+test('equals to 26', ({ expect }) => {
+	expect(26).toBe(26)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-027.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-027.test.ts
new file mode 100644
index 0000000..ea8c186
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-027.test.ts
@@ -0,0 +1,3 @@
+test('equals to 27', ({ expect }) => {
+	expect(27).toBe(27)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-028.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-028.test.ts
new file mode 100644
index 0000000..f8f95f2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-028.test.ts
@@ -0,0 +1,3 @@
+test('equals to 28', ({ expect }) => {
+	expect(28).toBe(28)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-029.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-029.test.ts
new file mode 100644
index 0000000..e95b9f8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-029.test.ts
@@ -0,0 +1,3 @@
+test('equals to 29', ({ expect }) => {
+	expect(29).toBe(29)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-030.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-030.test.ts
new file mode 100644
index 0000000..a8737e7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-030.test.ts
@@ -0,0 +1,3 @@
+test('equals to 30', ({ expect }) => {
+	expect(30).toBe(30)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-031.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-031.test.ts
new file mode 100644
index 0000000..ee67965
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-031.test.ts
@@ -0,0 +1,3 @@
+test('equals to 31', ({ expect }) => {
+	expect(31).toBe(31)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-032.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-032.test.ts
new file mode 100644
index 0000000..5e51f43
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-032.test.ts
@@ -0,0 +1,3 @@
+test('equals to 32', ({ expect }) => {
+	expect(32).toBe(32)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-033.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-033.test.ts
new file mode 100644
index 0000000..ca486d9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-033.test.ts
@@ -0,0 +1,3 @@
+test('equals to 33', ({ expect }) => {
+	expect(33).toBe(33)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-034.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-034.test.ts
new file mode 100644
index 0000000..0d46b52
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-034.test.ts
@@ -0,0 +1,3 @@
+test('equals to 34', ({ expect }) => {
+	expect(34).toBe(34)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-035.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-035.test.ts
new file mode 100644
index 0000000..8e6cb0c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-035.test.ts
@@ -0,0 +1,3 @@
+test('equals to 35', ({ expect }) => {
+	expect(35).toBe(35)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-036.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-036.test.ts
new file mode 100644
index 0000000..41b40ea
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-036.test.ts
@@ -0,0 +1,3 @@
+test('equals to 36', ({ expect }) => {
+	expect(36).toBe(36)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-037.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-037.test.ts
new file mode 100644
index 0000000..7d0be17
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-037.test.ts
@@ -0,0 +1,3 @@
+test('equals to 37', ({ expect }) => {
+	expect(37).toBe(37)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-038.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-038.test.ts
new file mode 100644
index 0000000..78d1869
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-038.test.ts
@@ -0,0 +1,3 @@
+test('equals to 38', ({ expect }) => {
+	expect(38).toBe(38)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-039.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-039.test.ts
new file mode 100644
index 0000000..d6105da
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-039.test.ts
@@ -0,0 +1,3 @@
+test('equals to 39', ({ expect }) => {
+	expect(39).toBe(39)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-040.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-040.test.ts
new file mode 100644
index 0000000..3d07708
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-040.test.ts
@@ -0,0 +1,3 @@
+test('equals to 40', ({ expect }) => {
+	expect(40).toBe(40)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-041.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-041.test.ts
new file mode 100644
index 0000000..087f3fd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-041.test.ts
@@ -0,0 +1,3 @@
+test('equals to 41', ({ expect }) => {
+	expect(41).toBe(41)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-042.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-042.test.ts
new file mode 100644
index 0000000..38293de
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-042.test.ts
@@ -0,0 +1,3 @@
+test('equals to 42', ({ expect }) => {
+	expect(42).toBe(42)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-043.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-043.test.ts
new file mode 100644
index 0000000..8a726f4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-043.test.ts
@@ -0,0 +1,3 @@
+test('equals to 43', ({ expect }) => {
+	expect(43).toBe(43)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-044.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-044.test.ts
new file mode 100644
index 0000000..8bedab6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-044.test.ts
@@ -0,0 +1,3 @@
+test('equals to 44', ({ expect }) => {
+	expect(44).toBe(44)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-045.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-045.test.ts
new file mode 100644
index 0000000..77f651c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-045.test.ts
@@ -0,0 +1,3 @@
+test('equals to 45', ({ expect }) => {
+	expect(45).toBe(45)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-046.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-046.test.ts
new file mode 100644
index 0000000..34c338a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-046.test.ts
@@ -0,0 +1,3 @@
+test('equals to 46', ({ expect }) => {
+	expect(46).toBe(46)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-047.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-047.test.ts
new file mode 100644
index 0000000..a5c0ee7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-047.test.ts
@@ -0,0 +1,3 @@
+test('equals to 47', ({ expect }) => {
+	expect(47).toBe(47)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-048.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-048.test.ts
new file mode 100644
index 0000000..cede99e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-048.test.ts
@@ -0,0 +1,3 @@
+test('equals to 48', ({ expect }) => {
+	expect(48).toBe(48)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-049.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-049.test.ts
new file mode 100644
index 0000000..1405698
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-049.test.ts
@@ -0,0 +1,3 @@
+test('equals to 49', ({ expect }) => {
+	expect(49).toBe(49)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-050.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-050.test.ts
new file mode 100644
index 0000000..5529cb0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-050.test.ts
@@ -0,0 +1,3 @@
+test('equals to 50', ({ expect }) => {
+	expect(50).toBe(50)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-051.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-051.test.ts
new file mode 100644
index 0000000..aa7a9ba
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-051.test.ts
@@ -0,0 +1,3 @@
+test('equals to 51', ({ expect }) => {
+	expect(51).toBe(51)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-052.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-052.test.ts
new file mode 100644
index 0000000..69aaa8d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-052.test.ts
@@ -0,0 +1,3 @@
+test('equals to 52', ({ expect }) => {
+	expect(52).toBe(52)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-053.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-053.test.ts
new file mode 100644
index 0000000..a36d193
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-053.test.ts
@@ -0,0 +1,3 @@
+test('equals to 53', ({ expect }) => {
+	expect(53).toBe(53)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-054.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-054.test.ts
new file mode 100644
index 0000000..c117b8d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-054.test.ts
@@ -0,0 +1,3 @@
+test('equals to 54', ({ expect }) => {
+	expect(54).toBe(54)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-055.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-055.test.ts
new file mode 100644
index 0000000..36151ef
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-055.test.ts
@@ -0,0 +1,3 @@
+test('equals to 55', ({ expect }) => {
+	expect(55).toBe(55)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-056.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-056.test.ts
new file mode 100644
index 0000000..e6d53ee
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-056.test.ts
@@ -0,0 +1,3 @@
+test('equals to 56', ({ expect }) => {
+	expect(56).toBe(56)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-057.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-057.test.ts
new file mode 100644
index 0000000..8cce6a6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-057.test.ts
@@ -0,0 +1,3 @@
+test('equals to 57', ({ expect }) => {
+	expect(57).toBe(57)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-058.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-058.test.ts
new file mode 100644
index 0000000..36afd98
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-058.test.ts
@@ -0,0 +1,3 @@
+test('equals to 58', ({ expect }) => {
+	expect(58).toBe(58)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-059.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-059.test.ts
new file mode 100644
index 0000000..94209de
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-059.test.ts
@@ -0,0 +1,3 @@
+test('equals to 59', ({ expect }) => {
+	expect(59).toBe(59)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-060.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-060.test.ts
new file mode 100644
index 0000000..fb694f2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-060.test.ts
@@ -0,0 +1,3 @@
+test('equals to 60', ({ expect }) => {
+	expect(60).toBe(60)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-061.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-061.test.ts
new file mode 100644
index 0000000..e8978d9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-061.test.ts
@@ -0,0 +1,3 @@
+test('equals to 61', ({ expect }) => {
+	expect(61).toBe(61)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-062.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-062.test.ts
new file mode 100644
index 0000000..dd3323c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-062.test.ts
@@ -0,0 +1,3 @@
+test('equals to 62', ({ expect }) => {
+	expect(62).toBe(62)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-063.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-063.test.ts
new file mode 100644
index 0000000..06df567
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-063.test.ts
@@ -0,0 +1,3 @@
+test('equals to 63', ({ expect }) => {
+	expect(63).toBe(63)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-064.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-064.test.ts
new file mode 100644
index 0000000..2e0745b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-064.test.ts
@@ -0,0 +1,3 @@
+test('equals to 64', ({ expect }) => {
+	expect(64).toBe(64)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-065.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-065.test.ts
new file mode 100644
index 0000000..375e566
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-065.test.ts
@@ -0,0 +1,3 @@
+test('equals to 65', ({ expect }) => {
+	expect(65).toBe(65)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-066.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-066.test.ts
new file mode 100644
index 0000000..3721d57
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-066.test.ts
@@ -0,0 +1,3 @@
+test('equals to 66', ({ expect }) => {
+	expect(66).toBe(66)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-067.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-067.test.ts
new file mode 100644
index 0000000..7fd78a7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-067.test.ts
@@ -0,0 +1,3 @@
+test('equals to 67', ({ expect }) => {
+	expect(67).toBe(67)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-068.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-068.test.ts
new file mode 100644
index 0000000..d048b21
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-068.test.ts
@@ -0,0 +1,3 @@
+test('equals to 68', ({ expect }) => {
+	expect(68).toBe(68)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-069.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-069.test.ts
new file mode 100644
index 0000000..ca34cb7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-069.test.ts
@@ -0,0 +1,3 @@
+test('equals to 69', ({ expect }) => {
+	expect(69).toBe(69)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-070.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-070.test.ts
new file mode 100644
index 0000000..f61d7c5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-070.test.ts
@@ -0,0 +1,3 @@
+test('equals to 70', ({ expect }) => {
+	expect(70).toBe(70)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-071.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-071.test.ts
new file mode 100644
index 0000000..3ff447c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-071.test.ts
@@ -0,0 +1,3 @@
+test('equals to 71', ({ expect }) => {
+	expect(71).toBe(71)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-072.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-072.test.ts
new file mode 100644
index 0000000..ebb3030
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-072.test.ts
@@ -0,0 +1,3 @@
+test('equals to 72', ({ expect }) => {
+	expect(72).toBe(72)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-073.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-073.test.ts
new file mode 100644
index 0000000..1db5d45
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-073.test.ts
@@ -0,0 +1,3 @@
+test('equals to 73', ({ expect }) => {
+	expect(73).toBe(73)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-074.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-074.test.ts
new file mode 100644
index 0000000..0d77062
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-074.test.ts
@@ -0,0 +1,3 @@
+test('equals to 74', ({ expect }) => {
+	expect(74).toBe(74)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-075.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-075.test.ts
new file mode 100644
index 0000000..a25bd53
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-075.test.ts
@@ -0,0 +1,3 @@
+test('equals to 75', ({ expect }) => {
+	expect(75).toBe(75)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-076.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-076.test.ts
new file mode 100644
index 0000000..d46efd9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-076.test.ts
@@ -0,0 +1,3 @@
+test('equals to 76', ({ expect }) => {
+	expect(76).toBe(76)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-077.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-077.test.ts
new file mode 100644
index 0000000..d8d0a8f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-077.test.ts
@@ -0,0 +1,3 @@
+test('equals to 77', ({ expect }) => {
+	expect(77).toBe(77)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-078.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-078.test.ts
new file mode 100644
index 0000000..acf982a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-078.test.ts
@@ -0,0 +1,3 @@
+test('equals to 78', ({ expect }) => {
+	expect(78).toBe(78)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-079.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-079.test.ts
new file mode 100644
index 0000000..6e0ae87
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-079.test.ts
@@ -0,0 +1,3 @@
+test('equals to 79', ({ expect }) => {
+	expect(79).toBe(79)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-080.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-080.test.ts
new file mode 100644
index 0000000..9237bc9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-080.test.ts
@@ -0,0 +1,3 @@
+test('equals to 80', ({ expect }) => {
+	expect(80).toBe(80)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-081.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-081.test.ts
new file mode 100644
index 0000000..c74fb0a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-081.test.ts
@@ -0,0 +1,3 @@
+test('equals to 81', ({ expect }) => {
+	expect(81).toBe(81)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-082.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-082.test.ts
new file mode 100644
index 0000000..dda4dab
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-082.test.ts
@@ -0,0 +1,3 @@
+test('equals to 82', ({ expect }) => {
+	expect(82).toBe(82)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-083.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-083.test.ts
new file mode 100644
index 0000000..0a28089
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-083.test.ts
@@ -0,0 +1,3 @@
+test('equals to 83', ({ expect }) => {
+	expect(83).toBe(83)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-084.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-084.test.ts
new file mode 100644
index 0000000..8bf2eb4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-084.test.ts
@@ -0,0 +1,3 @@
+test('equals to 84', ({ expect }) => {
+	expect(84).toBe(84)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-085.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-085.test.ts
new file mode 100644
index 0000000..e639fb1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-085.test.ts
@@ -0,0 +1,3 @@
+test('equals to 85', ({ expect }) => {
+	expect(85).toBe(85)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-086.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-086.test.ts
new file mode 100644
index 0000000..a27d930
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-086.test.ts
@@ -0,0 +1,3 @@
+test('equals to 86', ({ expect }) => {
+	expect(86).toBe(86)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-087.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-087.test.ts
new file mode 100644
index 0000000..8a922f7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-087.test.ts
@@ -0,0 +1,3 @@
+test('equals to 87', ({ expect }) => {
+	expect(87).toBe(87)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-088.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-088.test.ts
new file mode 100644
index 0000000..b4781d2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-088.test.ts
@@ -0,0 +1,3 @@
+test('equals to 88', ({ expect }) => {
+	expect(88).toBe(88)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-089.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-089.test.ts
new file mode 100644
index 0000000..b2bff5a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-089.test.ts
@@ -0,0 +1,3 @@
+test('equals to 89', ({ expect }) => {
+	expect(89).toBe(89)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-090.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-090.test.ts
new file mode 100644
index 0000000..421471b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-090.test.ts
@@ -0,0 +1,3 @@
+test('equals to 90', ({ expect }) => {
+	expect(90).toBe(90)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-091.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-091.test.ts
new file mode 100644
index 0000000..fa441a1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-091.test.ts
@@ -0,0 +1,3 @@
+test('equals to 91', ({ expect }) => {
+	expect(91).toBe(91)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-092.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-092.test.ts
new file mode 100644
index 0000000..70ad807
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-092.test.ts
@@ -0,0 +1,3 @@
+test('equals to 92', ({ expect }) => {
+	expect(92).toBe(92)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-093.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-093.test.ts
new file mode 100644
index 0000000..a699cb0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-093.test.ts
@@ -0,0 +1,3 @@
+test('equals to 93', ({ expect }) => {
+	expect(93).toBe(93)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-094.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-094.test.ts
new file mode 100644
index 0000000..687a154
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-094.test.ts
@@ -0,0 +1,3 @@
+test('equals to 94', ({ expect }) => {
+	expect(94).toBe(94)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-095.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-095.test.ts
new file mode 100644
index 0000000..830b01a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-095.test.ts
@@ -0,0 +1,3 @@
+test('equals to 95', ({ expect }) => {
+	expect(95).toBe(95)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-096.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-096.test.ts
new file mode 100644
index 0000000..21444e1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-096.test.ts
@@ -0,0 +1,3 @@
+test('equals to 96', ({ expect }) => {
+	expect(96).toBe(96)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-097.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-097.test.ts
new file mode 100644
index 0000000..7d75ce4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-097.test.ts
@@ -0,0 +1,3 @@
+test('equals to 97', ({ expect }) => {
+	expect(97).toBe(97)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-098.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-098.test.ts
new file mode 100644
index 0000000..8a0b1d0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-098.test.ts
@@ -0,0 +1,3 @@
+test('equals to 98', ({ expect }) => {
+	expect(98).toBe(98)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-099.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-099.test.ts
new file mode 100644
index 0000000..fbee220
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-099.test.ts
@@ -0,0 +1,3 @@
+test('equals to 99', ({ expect }) => {
+	expect(99).toBe(99)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-100.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-100.test.ts
new file mode 100644
index 0000000..1f8604c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-100.test.ts
@@ -0,0 +1,3 @@
+test('equals to 100', ({ expect }) => {
+	expect(100).toBe(100)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-101.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-101.test.ts
new file mode 100644
index 0000000..a1b66d1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-101.test.ts
@@ -0,0 +1,3 @@
+test('equals to 101', ({ expect }) => {
+	expect(101).toBe(101)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-102.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-102.test.ts
new file mode 100644
index 0000000..3454794
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-102.test.ts
@@ -0,0 +1,3 @@
+test('equals to 102', ({ expect }) => {
+	expect(102).toBe(102)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-103.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-103.test.ts
new file mode 100644
index 0000000..6be7c38
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-103.test.ts
@@ -0,0 +1,3 @@
+test('equals to 103', ({ expect }) => {
+	expect(103).toBe(103)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-104.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-104.test.ts
new file mode 100644
index 0000000..3fd0b0c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-104.test.ts
@@ -0,0 +1,3 @@
+test('equals to 104', ({ expect }) => {
+	expect(104).toBe(104)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-105.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-105.test.ts
new file mode 100644
index 0000000..1c462f1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-105.test.ts
@@ -0,0 +1,3 @@
+test('equals to 105', ({ expect }) => {
+	expect(105).toBe(105)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-106.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-106.test.ts
new file mode 100644
index 0000000..9860b59
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-106.test.ts
@@ -0,0 +1,3 @@
+test('equals to 106', ({ expect }) => {
+	expect(106).toBe(106)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-107.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-107.test.ts
new file mode 100644
index 0000000..7478cd9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-107.test.ts
@@ -0,0 +1,3 @@
+test('equals to 107', ({ expect }) => {
+	expect(107).toBe(107)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-108.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-108.test.ts
new file mode 100644
index 0000000..1a811a9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-108.test.ts
@@ -0,0 +1,3 @@
+test('equals to 108', ({ expect }) => {
+	expect(108).toBe(108)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-109.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-109.test.ts
new file mode 100644
index 0000000..6d29d4a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-109.test.ts
@@ -0,0 +1,3 @@
+test('equals to 109', ({ expect }) => {
+	expect(109).toBe(109)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-110.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-110.test.ts
new file mode 100644
index 0000000..178a9e9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-110.test.ts
@@ -0,0 +1,3 @@
+test('equals to 110', ({ expect }) => {
+	expect(110).toBe(110)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-111.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-111.test.ts
new file mode 100644
index 0000000..b08a624
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-111.test.ts
@@ -0,0 +1,3 @@
+test('equals to 111', ({ expect }) => {
+	expect(111).toBe(111)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-112.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-112.test.ts
new file mode 100644
index 0000000..a686175
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-112.test.ts
@@ -0,0 +1,3 @@
+test('equals to 112', ({ expect }) => {
+	expect(112).toBe(112)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-113.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-113.test.ts
new file mode 100644
index 0000000..a8044b1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-113.test.ts
@@ -0,0 +1,3 @@
+test('equals to 113', ({ expect }) => {
+	expect(113).toBe(113)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-114.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-114.test.ts
new file mode 100644
index 0000000..3a937cc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-114.test.ts
@@ -0,0 +1,3 @@
+test('equals to 114', ({ expect }) => {
+	expect(114).toBe(114)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-115.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-115.test.ts
new file mode 100644
index 0000000..e7015ae
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-115.test.ts
@@ -0,0 +1,3 @@
+test('equals to 115', ({ expect }) => {
+	expect(115).toBe(115)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-116.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-116.test.ts
new file mode 100644
index 0000000..917e71c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-116.test.ts
@@ -0,0 +1,3 @@
+test('equals to 116', ({ expect }) => {
+	expect(116).toBe(116)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-117.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-117.test.ts
new file mode 100644
index 0000000..6cedd74
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-117.test.ts
@@ -0,0 +1,3 @@
+test('equals to 117', ({ expect }) => {
+	expect(117).toBe(117)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-118.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-118.test.ts
new file mode 100644
index 0000000..a4a549a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-118.test.ts
@@ -0,0 +1,3 @@
+test('equals to 118', ({ expect }) => {
+	expect(118).toBe(118)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-119.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-119.test.ts
new file mode 100644
index 0000000..7bb4531
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-119.test.ts
@@ -0,0 +1,3 @@
+test('equals to 119', ({ expect }) => {
+	expect(119).toBe(119)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-120.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-120.test.ts
new file mode 100644
index 0000000..9003e0c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-120.test.ts
@@ -0,0 +1,3 @@
+test('equals to 120', ({ expect }) => {
+	expect(120).toBe(120)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-121.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-121.test.ts
new file mode 100644
index 0000000..e6d7d90
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-121.test.ts
@@ -0,0 +1,3 @@
+test('equals to 121', ({ expect }) => {
+	expect(121).toBe(121)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-122.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-122.test.ts
new file mode 100644
index 0000000..576cbd0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-122.test.ts
@@ -0,0 +1,3 @@
+test('equals to 122', ({ expect }) => {
+	expect(122).toBe(122)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-123.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-123.test.ts
new file mode 100644
index 0000000..7226ea2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-123.test.ts
@@ -0,0 +1,3 @@
+test('equals to 123', ({ expect }) => {
+	expect(123).toBe(123)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-124.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-124.test.ts
new file mode 100644
index 0000000..51f91b6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-124.test.ts
@@ -0,0 +1,3 @@
+test('equals to 124', ({ expect }) => {
+	expect(124).toBe(124)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-125.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-125.test.ts
new file mode 100644
index 0000000..2996341
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-125.test.ts
@@ -0,0 +1,3 @@
+test('equals to 125', ({ expect }) => {
+	expect(125).toBe(125)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-126.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-126.test.ts
new file mode 100644
index 0000000..da0ee9e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-126.test.ts
@@ -0,0 +1,3 @@
+test('equals to 126', ({ expect }) => {
+	expect(126).toBe(126)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-127.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-127.test.ts
new file mode 100644
index 0000000..96369f1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-127.test.ts
@@ -0,0 +1,3 @@
+test('equals to 127', ({ expect }) => {
+	expect(127).toBe(127)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-128.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-128.test.ts
new file mode 100644
index 0000000..7d0d663
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-128.test.ts
@@ -0,0 +1,3 @@
+test('equals to 128', ({ expect }) => {
+	expect(128).toBe(128)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-129.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-129.test.ts
new file mode 100644
index 0000000..12b1df4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-129.test.ts
@@ -0,0 +1,3 @@
+test('equals to 129', ({ expect }) => {
+	expect(129).toBe(129)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-130.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-130.test.ts
new file mode 100644
index 0000000..cf9e9eb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-130.test.ts
@@ -0,0 +1,3 @@
+test('equals to 130', ({ expect }) => {
+	expect(130).toBe(130)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-131.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-131.test.ts
new file mode 100644
index 0000000..bb9100f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-131.test.ts
@@ -0,0 +1,3 @@
+test('equals to 131', ({ expect }) => {
+	expect(131).toBe(131)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-132.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-132.test.ts
new file mode 100644
index 0000000..764d811
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-132.test.ts
@@ -0,0 +1,3 @@
+test('equals to 132', ({ expect }) => {
+	expect(132).toBe(132)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-133.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-133.test.ts
new file mode 100644
index 0000000..6eefd7e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-133.test.ts
@@ -0,0 +1,3 @@
+test('equals to 133', ({ expect }) => {
+	expect(133).toBe(133)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-134.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-134.test.ts
new file mode 100644
index 0000000..bddc124
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-134.test.ts
@@ -0,0 +1,3 @@
+test('equals to 134', ({ expect }) => {
+	expect(134).toBe(134)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-135.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-135.test.ts
new file mode 100644
index 0000000..0e712f3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-135.test.ts
@@ -0,0 +1,3 @@
+test('equals to 135', ({ expect }) => {
+	expect(135).toBe(135)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-136.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-136.test.ts
new file mode 100644
index 0000000..1da68cc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-136.test.ts
@@ -0,0 +1,3 @@
+test('equals to 136', ({ expect }) => {
+	expect(136).toBe(136)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-137.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-137.test.ts
new file mode 100644
index 0000000..016b8b4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-137.test.ts
@@ -0,0 +1,3 @@
+test('equals to 137', ({ expect }) => {
+	expect(137).toBe(137)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-138.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-138.test.ts
new file mode 100644
index 0000000..7fc5029
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-138.test.ts
@@ -0,0 +1,3 @@
+test('equals to 138', ({ expect }) => {
+	expect(138).toBe(138)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-139.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-139.test.ts
new file mode 100644
index 0000000..16f1541
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-139.test.ts
@@ -0,0 +1,3 @@
+test('equals to 139', ({ expect }) => {
+	expect(139).toBe(139)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-140.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-140.test.ts
new file mode 100644
index 0000000..f27bc81
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-140.test.ts
@@ -0,0 +1,3 @@
+test('equals to 140', ({ expect }) => {
+	expect(140).toBe(140)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-141.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-141.test.ts
new file mode 100644
index 0000000..5274c38
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-141.test.ts
@@ -0,0 +1,3 @@
+test('equals to 141', ({ expect }) => {
+	expect(141).toBe(141)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-142.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-142.test.ts
new file mode 100644
index 0000000..3903f05
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-142.test.ts
@@ -0,0 +1,3 @@
+test('equals to 142', ({ expect }) => {
+	expect(142).toBe(142)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-143.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-143.test.ts
new file mode 100644
index 0000000..4ff0199
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-143.test.ts
@@ -0,0 +1,3 @@
+test('equals to 143', ({ expect }) => {
+	expect(143).toBe(143)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-144.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-144.test.ts
new file mode 100644
index 0000000..e9753b8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-144.test.ts
@@ -0,0 +1,3 @@
+test('equals to 144', ({ expect }) => {
+	expect(144).toBe(144)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-145.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-145.test.ts
new file mode 100644
index 0000000..cc82c6a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-145.test.ts
@@ -0,0 +1,3 @@
+test('equals to 145', ({ expect }) => {
+	expect(145).toBe(145)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-146.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-146.test.ts
new file mode 100644
index 0000000..8a9dee3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-146.test.ts
@@ -0,0 +1,3 @@
+test('equals to 146', ({ expect }) => {
+	expect(146).toBe(146)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-147.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-147.test.ts
new file mode 100644
index 0000000..c1ad5c9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-147.test.ts
@@ -0,0 +1,3 @@
+test('equals to 147', ({ expect }) => {
+	expect(147).toBe(147)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-148.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-148.test.ts
new file mode 100644
index 0000000..f55ebee
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-148.test.ts
@@ -0,0 +1,3 @@
+test('equals to 148', ({ expect }) => {
+	expect(148).toBe(148)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-149.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-149.test.ts
new file mode 100644
index 0000000..5d630c5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-149.test.ts
@@ -0,0 +1,3 @@
+test('equals to 149', ({ expect }) => {
+	expect(149).toBe(149)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-150.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-150.test.ts
new file mode 100644
index 0000000..4db4662
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-150.test.ts
@@ -0,0 +1,3 @@
+test('equals to 150', ({ expect }) => {
+	expect(150).toBe(150)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-151.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-151.test.ts
new file mode 100644
index 0000000..fbb2a1b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-151.test.ts
@@ -0,0 +1,3 @@
+test('equals to 151', ({ expect }) => {
+	expect(151).toBe(151)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-152.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-152.test.ts
new file mode 100644
index 0000000..8eabfd5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-152.test.ts
@@ -0,0 +1,3 @@
+test('equals to 152', ({ expect }) => {
+	expect(152).toBe(152)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-153.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-153.test.ts
new file mode 100644
index 0000000..94c559d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-153.test.ts
@@ -0,0 +1,3 @@
+test('equals to 153', ({ expect }) => {
+	expect(153).toBe(153)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-154.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-154.test.ts
new file mode 100644
index 0000000..e211f1a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-154.test.ts
@@ -0,0 +1,3 @@
+test('equals to 154', ({ expect }) => {
+	expect(154).toBe(154)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-155.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-155.test.ts
new file mode 100644
index 0000000..82b4d12
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-155.test.ts
@@ -0,0 +1,3 @@
+test('equals to 155', ({ expect }) => {
+	expect(155).toBe(155)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-156.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-156.test.ts
new file mode 100644
index 0000000..5597fa4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-156.test.ts
@@ -0,0 +1,3 @@
+test('equals to 156', ({ expect }) => {
+	expect(156).toBe(156)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-157.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-157.test.ts
new file mode 100644
index 0000000..cdb8d69
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-157.test.ts
@@ -0,0 +1,3 @@
+test('equals to 157', ({ expect }) => {
+	expect(157).toBe(157)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-158.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-158.test.ts
new file mode 100644
index 0000000..40ebc97
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-158.test.ts
@@ -0,0 +1,3 @@
+test('equals to 158', ({ expect }) => {
+	expect(158).toBe(158)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-159.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-159.test.ts
new file mode 100644
index 0000000..0de4d43
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-159.test.ts
@@ -0,0 +1,3 @@
+test('equals to 159', ({ expect }) => {
+	expect(159).toBe(159)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-160.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-160.test.ts
new file mode 100644
index 0000000..02ec7cd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-160.test.ts
@@ -0,0 +1,3 @@
+test('equals to 160', ({ expect }) => {
+	expect(160).toBe(160)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-161.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-161.test.ts
new file mode 100644
index 0000000..87bbe38
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-161.test.ts
@@ -0,0 +1,3 @@
+test('equals to 161', ({ expect }) => {
+	expect(161).toBe(161)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-162.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-162.test.ts
new file mode 100644
index 0000000..1ed9fd5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-162.test.ts
@@ -0,0 +1,3 @@
+test('equals to 162', ({ expect }) => {
+	expect(162).toBe(162)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-163.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-163.test.ts
new file mode 100644
index 0000000..cf2275a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-163.test.ts
@@ -0,0 +1,3 @@
+test('equals to 163', ({ expect }) => {
+	expect(163).toBe(163)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-164.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-164.test.ts
new file mode 100644
index 0000000..31ce623
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-164.test.ts
@@ -0,0 +1,3 @@
+test('equals to 164', ({ expect }) => {
+	expect(164).toBe(164)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-165.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-165.test.ts
new file mode 100644
index 0000000..ee40003
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-165.test.ts
@@ -0,0 +1,3 @@
+test('equals to 165', ({ expect }) => {
+	expect(165).toBe(165)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-166.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-166.test.ts
new file mode 100644
index 0000000..4fb95b9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-166.test.ts
@@ -0,0 +1,3 @@
+test('equals to 166', ({ expect }) => {
+	expect(166).toBe(166)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-167.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-167.test.ts
new file mode 100644
index 0000000..f4405bc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-167.test.ts
@@ -0,0 +1,3 @@
+test('equals to 167', ({ expect }) => {
+	expect(167).toBe(167)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-168.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-168.test.ts
new file mode 100644
index 0000000..7ad0392
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-168.test.ts
@@ -0,0 +1,3 @@
+test('equals to 168', ({ expect }) => {
+	expect(168).toBe(168)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-169.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-169.test.ts
new file mode 100644
index 0000000..98e59d9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-169.test.ts
@@ -0,0 +1,3 @@
+test('equals to 169', ({ expect }) => {
+	expect(169).toBe(169)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-170.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-170.test.ts
new file mode 100644
index 0000000..4b096cc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-170.test.ts
@@ -0,0 +1,3 @@
+test('equals to 170', ({ expect }) => {
+	expect(170).toBe(170)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-171.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-171.test.ts
new file mode 100644
index 0000000..b9afc79
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-171.test.ts
@@ -0,0 +1,3 @@
+test('equals to 171', ({ expect }) => {
+	expect(171).toBe(171)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-172.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-172.test.ts
new file mode 100644
index 0000000..f13c3a4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-172.test.ts
@@ -0,0 +1,3 @@
+test('equals to 172', ({ expect }) => {
+	expect(172).toBe(172)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-173.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-173.test.ts
new file mode 100644
index 0000000..76740e4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-173.test.ts
@@ -0,0 +1,3 @@
+test('equals to 173', ({ expect }) => {
+	expect(173).toBe(173)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-174.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-174.test.ts
new file mode 100644
index 0000000..c5a4d87
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-174.test.ts
@@ -0,0 +1,3 @@
+test('equals to 174', ({ expect }) => {
+	expect(174).toBe(174)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-175.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-175.test.ts
new file mode 100644
index 0000000..4e05f89
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-175.test.ts
@@ -0,0 +1,3 @@
+test('equals to 175', ({ expect }) => {
+	expect(175).toBe(175)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-176.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-176.test.ts
new file mode 100644
index 0000000..5e1b06e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-176.test.ts
@@ -0,0 +1,3 @@
+test('equals to 176', ({ expect }) => {
+	expect(176).toBe(176)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-177.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-177.test.ts
new file mode 100644
index 0000000..c5598fd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-177.test.ts
@@ -0,0 +1,3 @@
+test('equals to 177', ({ expect }) => {
+	expect(177).toBe(177)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-178.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-178.test.ts
new file mode 100644
index 0000000..1a1a8be
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-178.test.ts
@@ -0,0 +1,3 @@
+test('equals to 178', ({ expect }) => {
+	expect(178).toBe(178)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-179.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-179.test.ts
new file mode 100644
index 0000000..1a63a0d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-179.test.ts
@@ -0,0 +1,3 @@
+test('equals to 179', ({ expect }) => {
+	expect(179).toBe(179)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-180.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-180.test.ts
new file mode 100644
index 0000000..0ddb80b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-180.test.ts
@@ -0,0 +1,3 @@
+test('equals to 180', ({ expect }) => {
+	expect(180).toBe(180)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-181.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-181.test.ts
new file mode 100644
index 0000000..0d69406
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-181.test.ts
@@ -0,0 +1,3 @@
+test('equals to 181', ({ expect }) => {
+	expect(181).toBe(181)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-182.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-182.test.ts
new file mode 100644
index 0000000..ce6626c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-182.test.ts
@@ -0,0 +1,3 @@
+test('equals to 182', ({ expect }) => {
+	expect(182).toBe(182)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-183.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-183.test.ts
new file mode 100644
index 0000000..c3348e7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-183.test.ts
@@ -0,0 +1,3 @@
+test('equals to 183', ({ expect }) => {
+	expect(183).toBe(183)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-184.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-184.test.ts
new file mode 100644
index 0000000..961493f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-184.test.ts
@@ -0,0 +1,3 @@
+test('equals to 184', ({ expect }) => {
+	expect(184).toBe(184)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-185.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-185.test.ts
new file mode 100644
index 0000000..e42c75d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-185.test.ts
@@ -0,0 +1,3 @@
+test('equals to 185', ({ expect }) => {
+	expect(185).toBe(185)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-186.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-186.test.ts
new file mode 100644
index 0000000..a067ab4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-186.test.ts
@@ -0,0 +1,3 @@
+test('equals to 186', ({ expect }) => {
+	expect(186).toBe(186)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-187.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-187.test.ts
new file mode 100644
index 0000000..fa0ca51
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-187.test.ts
@@ -0,0 +1,3 @@
+test('equals to 187', ({ expect }) => {
+	expect(187).toBe(187)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-188.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-188.test.ts
new file mode 100644
index 0000000..15a63d0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-188.test.ts
@@ -0,0 +1,3 @@
+test('equals to 188', ({ expect }) => {
+	expect(188).toBe(188)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-189.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-189.test.ts
new file mode 100644
index 0000000..6cea424
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-189.test.ts
@@ -0,0 +1,3 @@
+test('equals to 189', ({ expect }) => {
+	expect(189).toBe(189)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-190.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-190.test.ts
new file mode 100644
index 0000000..e891be8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-190.test.ts
@@ -0,0 +1,3 @@
+test('equals to 190', ({ expect }) => {
+	expect(190).toBe(190)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-191.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-191.test.ts
new file mode 100644
index 0000000..e294c2b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-191.test.ts
@@ -0,0 +1,3 @@
+test('equals to 191', ({ expect }) => {
+	expect(191).toBe(191)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-192.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-192.test.ts
new file mode 100644
index 0000000..2a0e10d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-192.test.ts
@@ -0,0 +1,3 @@
+test('equals to 192', ({ expect }) => {
+	expect(192).toBe(192)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-193.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-193.test.ts
new file mode 100644
index 0000000..e272ca7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-193.test.ts
@@ -0,0 +1,3 @@
+test('equals to 193', ({ expect }) => {
+	expect(193).toBe(193)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-194.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-194.test.ts
new file mode 100644
index 0000000..bd2db6b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-194.test.ts
@@ -0,0 +1,3 @@
+test('equals to 194', ({ expect }) => {
+	expect(194).toBe(194)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-195.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-195.test.ts
new file mode 100644
index 0000000..180fd81
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-195.test.ts
@@ -0,0 +1,3 @@
+test('equals to 195', ({ expect }) => {
+	expect(195).toBe(195)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-196.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-196.test.ts
new file mode 100644
index 0000000..8c94730
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-196.test.ts
@@ -0,0 +1,3 @@
+test('equals to 196', ({ expect }) => {
+	expect(196).toBe(196)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-197.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-197.test.ts
new file mode 100644
index 0000000..a939404
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-197.test.ts
@@ -0,0 +1,3 @@
+test('equals to 197', ({ expect }) => {
+	expect(197).toBe(197)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-198.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-198.test.ts
new file mode 100644
index 0000000..d703755
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-198.test.ts
@@ -0,0 +1,3 @@
+test('equals to 198', ({ expect }) => {
+	expect(198).toBe(198)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-199.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-199.test.ts
new file mode 100644
index 0000000..6830baf
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-199.test.ts
@@ -0,0 +1,3 @@
+test('equals to 199', ({ expect }) => {
+	expect(199).toBe(199)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-200.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-200.test.ts
new file mode 100644
index 0000000..2f78fb0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-200.test.ts
@@ -0,0 +1,3 @@
+test('equals to 200', ({ expect }) => {
+	expect(200).toBe(200)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-201.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-201.test.ts
new file mode 100644
index 0000000..b520dee
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-201.test.ts
@@ -0,0 +1,3 @@
+test('equals to 201', ({ expect }) => {
+	expect(201).toBe(201)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-202.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-202.test.ts
new file mode 100644
index 0000000..8813828
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-202.test.ts
@@ -0,0 +1,3 @@
+test('equals to 202', ({ expect }) => {
+	expect(202).toBe(202)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-203.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-203.test.ts
new file mode 100644
index 0000000..4f1affd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-203.test.ts
@@ -0,0 +1,3 @@
+test('equals to 203', ({ expect }) => {
+	expect(203).toBe(203)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-204.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-204.test.ts
new file mode 100644
index 0000000..d4f0da2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-204.test.ts
@@ -0,0 +1,3 @@
+test('equals to 204', ({ expect }) => {
+	expect(204).toBe(204)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-205.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-205.test.ts
new file mode 100644
index 0000000..157c51d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-205.test.ts
@@ -0,0 +1,3 @@
+test('equals to 205', ({ expect }) => {
+	expect(205).toBe(205)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-206.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-206.test.ts
new file mode 100644
index 0000000..0f6479b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-206.test.ts
@@ -0,0 +1,3 @@
+test('equals to 206', ({ expect }) => {
+	expect(206).toBe(206)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-207.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-207.test.ts
new file mode 100644
index 0000000..2b22efd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-207.test.ts
@@ -0,0 +1,3 @@
+test('equals to 207', ({ expect }) => {
+	expect(207).toBe(207)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-208.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-208.test.ts
new file mode 100644
index 0000000..c0b50ed
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-208.test.ts
@@ -0,0 +1,3 @@
+test('equals to 208', ({ expect }) => {
+	expect(208).toBe(208)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-209.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-209.test.ts
new file mode 100644
index 0000000..fb28c3f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-209.test.ts
@@ -0,0 +1,3 @@
+test('equals to 209', ({ expect }) => {
+	expect(209).toBe(209)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-210.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-210.test.ts
new file mode 100644
index 0000000..64f0268
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-210.test.ts
@@ -0,0 +1,3 @@
+test('equals to 210', ({ expect }) => {
+	expect(210).toBe(210)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-211.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-211.test.ts
new file mode 100644
index 0000000..d64cf8a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-211.test.ts
@@ -0,0 +1,3 @@
+test('equals to 211', ({ expect }) => {
+	expect(211).toBe(211)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-212.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-212.test.ts
new file mode 100644
index 0000000..fa0b26d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-212.test.ts
@@ -0,0 +1,3 @@
+test('equals to 212', ({ expect }) => {
+	expect(212).toBe(212)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-213.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-213.test.ts
new file mode 100644
index 0000000..3308da3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-213.test.ts
@@ -0,0 +1,3 @@
+test('equals to 213', ({ expect }) => {
+	expect(213).toBe(213)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-214.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-214.test.ts
new file mode 100644
index 0000000..b9dc9d4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-214.test.ts
@@ -0,0 +1,3 @@
+test('equals to 214', ({ expect }) => {
+	expect(214).toBe(214)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-215.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-215.test.ts
new file mode 100644
index 0000000..97951ac
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-215.test.ts
@@ -0,0 +1,3 @@
+test('equals to 215', ({ expect }) => {
+	expect(215).toBe(215)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-216.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-216.test.ts
new file mode 100644
index 0000000..4d25200
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-216.test.ts
@@ -0,0 +1,3 @@
+test('equals to 216', ({ expect }) => {
+	expect(216).toBe(216)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-217.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-217.test.ts
new file mode 100644
index 0000000..9ed57a7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-217.test.ts
@@ -0,0 +1,3 @@
+test('equals to 217', ({ expect }) => {
+	expect(217).toBe(217)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-218.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-218.test.ts
new file mode 100644
index 0000000..acb83bb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-218.test.ts
@@ -0,0 +1,3 @@
+test('equals to 218', ({ expect }) => {
+	expect(218).toBe(218)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-219.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-219.test.ts
new file mode 100644
index 0000000..88c9869
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-219.test.ts
@@ -0,0 +1,3 @@
+test('equals to 219', ({ expect }) => {
+	expect(219).toBe(219)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-220.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-220.test.ts
new file mode 100644
index 0000000..c01f3ef
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-220.test.ts
@@ -0,0 +1,3 @@
+test('equals to 220', ({ expect }) => {
+	expect(220).toBe(220)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-221.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-221.test.ts
new file mode 100644
index 0000000..d29839d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-221.test.ts
@@ -0,0 +1,3 @@
+test('equals to 221', ({ expect }) => {
+	expect(221).toBe(221)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-222.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-222.test.ts
new file mode 100644
index 0000000..bb697e6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-222.test.ts
@@ -0,0 +1,3 @@
+test('equals to 222', ({ expect }) => {
+	expect(222).toBe(222)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-223.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-223.test.ts
new file mode 100644
index 0000000..fa18b3b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-223.test.ts
@@ -0,0 +1,3 @@
+test('equals to 223', ({ expect }) => {
+	expect(223).toBe(223)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-224.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-224.test.ts
new file mode 100644
index 0000000..c6e0fae
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-224.test.ts
@@ -0,0 +1,3 @@
+test('equals to 224', ({ expect }) => {
+	expect(224).toBe(224)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-225.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-225.test.ts
new file mode 100644
index 0000000..ca00641
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-225.test.ts
@@ -0,0 +1,3 @@
+test('equals to 225', ({ expect }) => {
+	expect(225).toBe(225)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-226.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-226.test.ts
new file mode 100644
index 0000000..e21b12e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-226.test.ts
@@ -0,0 +1,3 @@
+test('equals to 226', ({ expect }) => {
+	expect(226).toBe(226)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-227.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-227.test.ts
new file mode 100644
index 0000000..8cf4175
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-227.test.ts
@@ -0,0 +1,3 @@
+test('equals to 227', ({ expect }) => {
+	expect(227).toBe(227)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-228.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-228.test.ts
new file mode 100644
index 0000000..550617a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-228.test.ts
@@ -0,0 +1,3 @@
+test('equals to 228', ({ expect }) => {
+	expect(228).toBe(228)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-229.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-229.test.ts
new file mode 100644
index 0000000..11307f5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-229.test.ts
@@ -0,0 +1,3 @@
+test('equals to 229', ({ expect }) => {
+	expect(229).toBe(229)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-230.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-230.test.ts
new file mode 100644
index 0000000..7e982d9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-230.test.ts
@@ -0,0 +1,3 @@
+test('equals to 230', ({ expect }) => {
+	expect(230).toBe(230)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-231.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-231.test.ts
new file mode 100644
index 0000000..607a44c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-231.test.ts
@@ -0,0 +1,3 @@
+test('equals to 231', ({ expect }) => {
+	expect(231).toBe(231)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-232.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-232.test.ts
new file mode 100644
index 0000000..f4d7c0b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-232.test.ts
@@ -0,0 +1,3 @@
+test('equals to 232', ({ expect }) => {
+	expect(232).toBe(232)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-233.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-233.test.ts
new file mode 100644
index 0000000..71127a8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-233.test.ts
@@ -0,0 +1,3 @@
+test('equals to 233', ({ expect }) => {
+	expect(233).toBe(233)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-234.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-234.test.ts
new file mode 100644
index 0000000..cd02453
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-234.test.ts
@@ -0,0 +1,3 @@
+test('equals to 234', ({ expect }) => {
+	expect(234).toBe(234)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-235.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-235.test.ts
new file mode 100644
index 0000000..b526ec9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-235.test.ts
@@ -0,0 +1,3 @@
+test('equals to 235', ({ expect }) => {
+	expect(235).toBe(235)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-236.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-236.test.ts
new file mode 100644
index 0000000..67b0ddf
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-236.test.ts
@@ -0,0 +1,3 @@
+test('equals to 236', ({ expect }) => {
+	expect(236).toBe(236)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-237.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-237.test.ts
new file mode 100644
index 0000000..cc69623
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-237.test.ts
@@ -0,0 +1,3 @@
+test('equals to 237', ({ expect }) => {
+	expect(237).toBe(237)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-238.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-238.test.ts
new file mode 100644
index 0000000..120fe7b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-238.test.ts
@@ -0,0 +1,3 @@
+test('equals to 238', ({ expect }) => {
+	expect(238).toBe(238)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-239.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-239.test.ts
new file mode 100644
index 0000000..e68fc07
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-239.test.ts
@@ -0,0 +1,3 @@
+test('equals to 239', ({ expect }) => {
+	expect(239).toBe(239)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-240.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-240.test.ts
new file mode 100644
index 0000000..5c149b3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-240.test.ts
@@ -0,0 +1,3 @@
+test('equals to 240', ({ expect }) => {
+	expect(240).toBe(240)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-241.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-241.test.ts
new file mode 100644
index 0000000..53cb302
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-241.test.ts
@@ -0,0 +1,3 @@
+test('equals to 241', ({ expect }) => {
+	expect(241).toBe(241)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-242.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-242.test.ts
new file mode 100644
index 0000000..06c5749
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-242.test.ts
@@ -0,0 +1,3 @@
+test('equals to 242', ({ expect }) => {
+	expect(242).toBe(242)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-243.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-243.test.ts
new file mode 100644
index 0000000..3fd6fbe
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-243.test.ts
@@ -0,0 +1,3 @@
+test('equals to 243', ({ expect }) => {
+	expect(243).toBe(243)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-244.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-244.test.ts
new file mode 100644
index 0000000..fe553d8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-244.test.ts
@@ -0,0 +1,3 @@
+test('equals to 244', ({ expect }) => {
+	expect(244).toBe(244)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-245.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-245.test.ts
new file mode 100644
index 0000000..84ce6d3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-245.test.ts
@@ -0,0 +1,3 @@
+test('equals to 245', ({ expect }) => {
+	expect(245).toBe(245)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-246.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-246.test.ts
new file mode 100644
index 0000000..561260f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-246.test.ts
@@ -0,0 +1,3 @@
+test('equals to 246', ({ expect }) => {
+	expect(246).toBe(246)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-247.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-247.test.ts
new file mode 100644
index 0000000..7a8ea6f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-247.test.ts
@@ -0,0 +1,3 @@
+test('equals to 247', ({ expect }) => {
+	expect(247).toBe(247)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-248.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-248.test.ts
new file mode 100644
index 0000000..f73d895
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-248.test.ts
@@ -0,0 +1,3 @@
+test('equals to 248', ({ expect }) => {
+	expect(248).toBe(248)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-249.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-249.test.ts
new file mode 100644
index 0000000..6bd786e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-249.test.ts
@@ -0,0 +1,3 @@
+test('equals to 249', ({ expect }) => {
+	expect(249).toBe(249)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-250.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-250.test.ts
new file mode 100644
index 0000000..e5a59a2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-250.test.ts
@@ -0,0 +1,3 @@
+test('equals to 250', ({ expect }) => {
+	expect(250).toBe(250)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-251.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-251.test.ts
new file mode 100644
index 0000000..7da179d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-251.test.ts
@@ -0,0 +1,3 @@
+test('equals to 251', ({ expect }) => {
+	expect(251).toBe(251)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-252.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-252.test.ts
new file mode 100644
index 0000000..8f5aa29
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-252.test.ts
@@ -0,0 +1,3 @@
+test('equals to 252', ({ expect }) => {
+	expect(252).toBe(252)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-253.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-253.test.ts
new file mode 100644
index 0000000..8713522
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-253.test.ts
@@ -0,0 +1,3 @@
+test('equals to 253', ({ expect }) => {
+	expect(253).toBe(253)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-254.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-254.test.ts
new file mode 100644
index 0000000..72dc2ed
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-254.test.ts
@@ -0,0 +1,3 @@
+test('equals to 254', ({ expect }) => {
+	expect(254).toBe(254)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-255.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-255.test.ts
new file mode 100644
index 0000000..59bc8fa
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-255.test.ts
@@ -0,0 +1,3 @@
+test('equals to 255', ({ expect }) => {
+	expect(255).toBe(255)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-256.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-256.test.ts
new file mode 100644
index 0000000..0170b89
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-256.test.ts
@@ -0,0 +1,3 @@
+test('equals to 256', ({ expect }) => {
+	expect(256).toBe(256)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-257.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-257.test.ts
new file mode 100644
index 0000000..5f6f2c8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-257.test.ts
@@ -0,0 +1,3 @@
+test('equals to 257', ({ expect }) => {
+	expect(257).toBe(257)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-258.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-258.test.ts
new file mode 100644
index 0000000..ea6b5db
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-258.test.ts
@@ -0,0 +1,3 @@
+test('equals to 258', ({ expect }) => {
+	expect(258).toBe(258)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-259.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-259.test.ts
new file mode 100644
index 0000000..98b1aa3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-259.test.ts
@@ -0,0 +1,3 @@
+test('equals to 259', ({ expect }) => {
+	expect(259).toBe(259)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-260.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-260.test.ts
new file mode 100644
index 0000000..2050d0f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-260.test.ts
@@ -0,0 +1,3 @@
+test('equals to 260', ({ expect }) => {
+	expect(260).toBe(260)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-261.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-261.test.ts
new file mode 100644
index 0000000..0ace632
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-261.test.ts
@@ -0,0 +1,3 @@
+test('equals to 261', ({ expect }) => {
+	expect(261).toBe(261)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-262.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-262.test.ts
new file mode 100644
index 0000000..314d072
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-262.test.ts
@@ -0,0 +1,3 @@
+test('equals to 262', ({ expect }) => {
+	expect(262).toBe(262)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-263.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-263.test.ts
new file mode 100644
index 0000000..4b4a0ab
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-263.test.ts
@@ -0,0 +1,3 @@
+test('equals to 263', ({ expect }) => {
+	expect(263).toBe(263)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-264.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-264.test.ts
new file mode 100644
index 0000000..449f634
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-264.test.ts
@@ -0,0 +1,3 @@
+test('equals to 264', ({ expect }) => {
+	expect(264).toBe(264)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-265.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-265.test.ts
new file mode 100644
index 0000000..47aa875
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-265.test.ts
@@ -0,0 +1,3 @@
+test('equals to 265', ({ expect }) => {
+	expect(265).toBe(265)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-266.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-266.test.ts
new file mode 100644
index 0000000..cb6433d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-266.test.ts
@@ -0,0 +1,3 @@
+test('equals to 266', ({ expect }) => {
+	expect(266).toBe(266)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-267.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-267.test.ts
new file mode 100644
index 0000000..8b89fa8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-267.test.ts
@@ -0,0 +1,3 @@
+test('equals to 267', ({ expect }) => {
+	expect(267).toBe(267)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-268.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-268.test.ts
new file mode 100644
index 0000000..878eecf
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-268.test.ts
@@ -0,0 +1,3 @@
+test('equals to 268', ({ expect }) => {
+	expect(268).toBe(268)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-269.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-269.test.ts
new file mode 100644
index 0000000..63b4046
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-269.test.ts
@@ -0,0 +1,3 @@
+test('equals to 269', ({ expect }) => {
+	expect(269).toBe(269)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-270.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-270.test.ts
new file mode 100644
index 0000000..d7d77f2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-270.test.ts
@@ -0,0 +1,3 @@
+test('equals to 270', ({ expect }) => {
+	expect(270).toBe(270)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-271.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-271.test.ts
new file mode 100644
index 0000000..15e83b6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-271.test.ts
@@ -0,0 +1,3 @@
+test('equals to 271', ({ expect }) => {
+	expect(271).toBe(271)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-272.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-272.test.ts
new file mode 100644
index 0000000..318ec10
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-272.test.ts
@@ -0,0 +1,3 @@
+test('equals to 272', ({ expect }) => {
+	expect(272).toBe(272)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-273.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-273.test.ts
new file mode 100644
index 0000000..158a35f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-273.test.ts
@@ -0,0 +1,3 @@
+test('equals to 273', ({ expect }) => {
+	expect(273).toBe(273)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-274.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-274.test.ts
new file mode 100644
index 0000000..2daf793
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-274.test.ts
@@ -0,0 +1,3 @@
+test('equals to 274', ({ expect }) => {
+	expect(274).toBe(274)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-275.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-275.test.ts
new file mode 100644
index 0000000..59f799e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-275.test.ts
@@ -0,0 +1,3 @@
+test('equals to 275', ({ expect }) => {
+	expect(275).toBe(275)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-276.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-276.test.ts
new file mode 100644
index 0000000..a8c8743
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-276.test.ts
@@ -0,0 +1,3 @@
+test('equals to 276', ({ expect }) => {
+	expect(276).toBe(276)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-277.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-277.test.ts
new file mode 100644
index 0000000..30ceb1c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-277.test.ts
@@ -0,0 +1,3 @@
+test('equals to 277', ({ expect }) => {
+	expect(277).toBe(277)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-278.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-278.test.ts
new file mode 100644
index 0000000..3d0ebbb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-278.test.ts
@@ -0,0 +1,3 @@
+test('equals to 278', ({ expect }) => {
+	expect(278).toBe(278)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-279.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-279.test.ts
new file mode 100644
index 0000000..a2aa9cb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-279.test.ts
@@ -0,0 +1,3 @@
+test('equals to 279', ({ expect }) => {
+	expect(279).toBe(279)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-280.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-280.test.ts
new file mode 100644
index 0000000..9d3ef7c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-280.test.ts
@@ -0,0 +1,3 @@
+test('equals to 280', ({ expect }) => {
+	expect(280).toBe(280)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-281.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-281.test.ts
new file mode 100644
index 0000000..8750b6a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-281.test.ts
@@ -0,0 +1,3 @@
+test('equals to 281', ({ expect }) => {
+	expect(281).toBe(281)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-282.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-282.test.ts
new file mode 100644
index 0000000..8862d54
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-282.test.ts
@@ -0,0 +1,3 @@
+test('equals to 282', ({ expect }) => {
+	expect(282).toBe(282)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-283.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-283.test.ts
new file mode 100644
index 0000000..8fa6fe5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-283.test.ts
@@ -0,0 +1,3 @@
+test('equals to 283', ({ expect }) => {
+	expect(283).toBe(283)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-284.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-284.test.ts
new file mode 100644
index 0000000..b96e186
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-284.test.ts
@@ -0,0 +1,3 @@
+test('equals to 284', ({ expect }) => {
+	expect(284).toBe(284)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-285.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-285.test.ts
new file mode 100644
index 0000000..0cff278
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-285.test.ts
@@ -0,0 +1,3 @@
+test('equals to 285', ({ expect }) => {
+	expect(285).toBe(285)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-286.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-286.test.ts
new file mode 100644
index 0000000..48cbc48
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-286.test.ts
@@ -0,0 +1,3 @@
+test('equals to 286', ({ expect }) => {
+	expect(286).toBe(286)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-287.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-287.test.ts
new file mode 100644
index 0000000..89e1d8c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-287.test.ts
@@ -0,0 +1,3 @@
+test('equals to 287', ({ expect }) => {
+	expect(287).toBe(287)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-288.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-288.test.ts
new file mode 100644
index 0000000..ba030e0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-288.test.ts
@@ -0,0 +1,3 @@
+test('equals to 288', ({ expect }) => {
+	expect(288).toBe(288)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-289.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-289.test.ts
new file mode 100644
index 0000000..185b931
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-289.test.ts
@@ -0,0 +1,3 @@
+test('equals to 289', ({ expect }) => {
+	expect(289).toBe(289)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-290.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-290.test.ts
new file mode 100644
index 0000000..ed4a006
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-290.test.ts
@@ -0,0 +1,3 @@
+test('equals to 290', ({ expect }) => {
+	expect(290).toBe(290)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-291.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-291.test.ts
new file mode 100644
index 0000000..3520d13
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-291.test.ts
@@ -0,0 +1,3 @@
+test('equals to 291', ({ expect }) => {
+	expect(291).toBe(291)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-292.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-292.test.ts
new file mode 100644
index 0000000..1114993
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-292.test.ts
@@ -0,0 +1,3 @@
+test('equals to 292', ({ expect }) => {
+	expect(292).toBe(292)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-293.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-293.test.ts
new file mode 100644
index 0000000..26201cb
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-293.test.ts
@@ -0,0 +1,3 @@
+test('equals to 293', ({ expect }) => {
+	expect(293).toBe(293)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-294.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-294.test.ts
new file mode 100644
index 0000000..17316fc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-294.test.ts
@@ -0,0 +1,3 @@
+test('equals to 294', ({ expect }) => {
+	expect(294).toBe(294)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-295.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-295.test.ts
new file mode 100644
index 0000000..b6eb908
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-295.test.ts
@@ -0,0 +1,3 @@
+test('equals to 295', ({ expect }) => {
+	expect(295).toBe(295)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-296.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-296.test.ts
new file mode 100644
index 0000000..32f2bb7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-296.test.ts
@@ -0,0 +1,3 @@
+test('equals to 296', ({ expect }) => {
+	expect(296).toBe(296)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-297.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-297.test.ts
new file mode 100644
index 0000000..1dcf56b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-297.test.ts
@@ -0,0 +1,3 @@
+test('equals to 297', ({ expect }) => {
+	expect(297).toBe(297)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-298.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-298.test.ts
new file mode 100644
index 0000000..3fde5c7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-298.test.ts
@@ -0,0 +1,3 @@
+test('equals to 298', ({ expect }) => {
+	expect(298).toBe(298)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-299.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-299.test.ts
new file mode 100644
index 0000000..99168e9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-299.test.ts
@@ -0,0 +1,3 @@
+test('equals to 299', ({ expect }) => {
+	expect(299).toBe(299)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-300.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-300.test.ts
new file mode 100644
index 0000000..d08fdd7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-300.test.ts
@@ -0,0 +1,3 @@
+test('equals to 300', ({ expect }) => {
+	expect(300).toBe(300)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-301.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-301.test.ts
new file mode 100644
index 0000000..dc3eaf3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-301.test.ts
@@ -0,0 +1,3 @@
+test('equals to 301', ({ expect }) => {
+	expect(301).toBe(301)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-302.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-302.test.ts
new file mode 100644
index 0000000..96d0dfd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-302.test.ts
@@ -0,0 +1,3 @@
+test('equals to 302', ({ expect }) => {
+	expect(302).toBe(302)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-303.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-303.test.ts
new file mode 100644
index 0000000..e41c517
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-303.test.ts
@@ -0,0 +1,3 @@
+test('equals to 303', ({ expect }) => {
+	expect(303).toBe(303)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-304.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-304.test.ts
new file mode 100644
index 0000000..639fdf0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-304.test.ts
@@ -0,0 +1,3 @@
+test('equals to 304', ({ expect }) => {
+	expect(304).toBe(304)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-305.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-305.test.ts
new file mode 100644
index 0000000..aaae343
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-305.test.ts
@@ -0,0 +1,3 @@
+test('equals to 305', ({ expect }) => {
+	expect(305).toBe(305)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-306.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-306.test.ts
new file mode 100644
index 0000000..d8c3eab
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-306.test.ts
@@ -0,0 +1,3 @@
+test('equals to 306', ({ expect }) => {
+	expect(306).toBe(306)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-307.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-307.test.ts
new file mode 100644
index 0000000..42486fe
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-307.test.ts
@@ -0,0 +1,3 @@
+test('equals to 307', ({ expect }) => {
+	expect(307).toBe(307)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-308.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-308.test.ts
new file mode 100644
index 0000000..aed9c2c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-308.test.ts
@@ -0,0 +1,3 @@
+test('equals to 308', ({ expect }) => {
+	expect(308).toBe(308)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-309.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-309.test.ts
new file mode 100644
index 0000000..cf8e16d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-309.test.ts
@@ -0,0 +1,3 @@
+test('equals to 309', ({ expect }) => {
+	expect(309).toBe(309)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-310.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-310.test.ts
new file mode 100644
index 0000000..0bbb765
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-310.test.ts
@@ -0,0 +1,3 @@
+test('equals to 310', ({ expect }) => {
+	expect(310).toBe(310)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-311.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-311.test.ts
new file mode 100644
index 0000000..249c1df
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-311.test.ts
@@ -0,0 +1,3 @@
+test('equals to 311', ({ expect }) => {
+	expect(311).toBe(311)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-312.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-312.test.ts
new file mode 100644
index 0000000..7148c57
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-312.test.ts
@@ -0,0 +1,3 @@
+test('equals to 312', ({ expect }) => {
+	expect(312).toBe(312)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-313.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-313.test.ts
new file mode 100644
index 0000000..1fb70ee
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-313.test.ts
@@ -0,0 +1,3 @@
+test('equals to 313', ({ expect }) => {
+	expect(313).toBe(313)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-314.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-314.test.ts
new file mode 100644
index 0000000..148d4bc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-314.test.ts
@@ -0,0 +1,3 @@
+test('equals to 314', ({ expect }) => {
+	expect(314).toBe(314)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-315.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-315.test.ts
new file mode 100644
index 0000000..0d31986
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-315.test.ts
@@ -0,0 +1,3 @@
+test('equals to 315', ({ expect }) => {
+	expect(315).toBe(315)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-316.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-316.test.ts
new file mode 100644
index 0000000..828e88d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-316.test.ts
@@ -0,0 +1,3 @@
+test('equals to 316', ({ expect }) => {
+	expect(316).toBe(316)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-317.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-317.test.ts
new file mode 100644
index 0000000..256fad3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-317.test.ts
@@ -0,0 +1,3 @@
+test('equals to 317', ({ expect }) => {
+	expect(317).toBe(317)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-318.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-318.test.ts
new file mode 100644
index 0000000..482262a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-318.test.ts
@@ -0,0 +1,3 @@
+test('equals to 318', ({ expect }) => {
+	expect(318).toBe(318)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-319.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-319.test.ts
new file mode 100644
index 0000000..4fcd783
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-319.test.ts
@@ -0,0 +1,3 @@
+test('equals to 319', ({ expect }) => {
+	expect(319).toBe(319)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-320.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-320.test.ts
new file mode 100644
index 0000000..f069004
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-320.test.ts
@@ -0,0 +1,3 @@
+test('equals to 320', ({ expect }) => {
+	expect(320).toBe(320)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-321.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-321.test.ts
new file mode 100644
index 0000000..11e35c9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-321.test.ts
@@ -0,0 +1,3 @@
+test('equals to 321', ({ expect }) => {
+	expect(321).toBe(321)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-322.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-322.test.ts
new file mode 100644
index 0000000..ec4939b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-322.test.ts
@@ -0,0 +1,3 @@
+test('equals to 322', ({ expect }) => {
+	expect(322).toBe(322)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-323.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-323.test.ts
new file mode 100644
index 0000000..623b7a6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-323.test.ts
@@ -0,0 +1,3 @@
+test('equals to 323', ({ expect }) => {
+	expect(323).toBe(323)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-324.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-324.test.ts
new file mode 100644
index 0000000..e5b8379
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-324.test.ts
@@ -0,0 +1,3 @@
+test('equals to 324', ({ expect }) => {
+	expect(324).toBe(324)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-325.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-325.test.ts
new file mode 100644
index 0000000..b723d34
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-325.test.ts
@@ -0,0 +1,3 @@
+test('equals to 325', ({ expect }) => {
+	expect(325).toBe(325)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-326.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-326.test.ts
new file mode 100644
index 0000000..117c0a7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-326.test.ts
@@ -0,0 +1,3 @@
+test('equals to 326', ({ expect }) => {
+	expect(326).toBe(326)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-327.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-327.test.ts
new file mode 100644
index 0000000..2d1f450
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-327.test.ts
@@ -0,0 +1,3 @@
+test('equals to 327', ({ expect }) => {
+	expect(327).toBe(327)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-328.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-328.test.ts
new file mode 100644
index 0000000..ba0ec64
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-328.test.ts
@@ -0,0 +1,3 @@
+test('equals to 328', ({ expect }) => {
+	expect(328).toBe(328)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-329.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-329.test.ts
new file mode 100644
index 0000000..c1521aa
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-329.test.ts
@@ -0,0 +1,3 @@
+test('equals to 329', ({ expect }) => {
+	expect(329).toBe(329)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-330.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-330.test.ts
new file mode 100644
index 0000000..cc9dd98
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-330.test.ts
@@ -0,0 +1,3 @@
+test('equals to 330', ({ expect }) => {
+	expect(330).toBe(330)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-331.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-331.test.ts
new file mode 100644
index 0000000..4198a11
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-331.test.ts
@@ -0,0 +1,3 @@
+test('equals to 331', ({ expect }) => {
+	expect(331).toBe(331)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-332.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-332.test.ts
new file mode 100644
index 0000000..e9e50a2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-332.test.ts
@@ -0,0 +1,3 @@
+test('equals to 332', ({ expect }) => {
+	expect(332).toBe(332)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-333.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-333.test.ts
new file mode 100644
index 0000000..d797ed7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-333.test.ts
@@ -0,0 +1,3 @@
+test('equals to 333', ({ expect }) => {
+	expect(333).toBe(333)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-334.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-334.test.ts
new file mode 100644
index 0000000..2fb407f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-334.test.ts
@@ -0,0 +1,3 @@
+test('equals to 334', ({ expect }) => {
+	expect(334).toBe(334)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-335.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-335.test.ts
new file mode 100644
index 0000000..3b5beed
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-335.test.ts
@@ -0,0 +1,3 @@
+test('equals to 335', ({ expect }) => {
+	expect(335).toBe(335)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-336.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-336.test.ts
new file mode 100644
index 0000000..8f48637
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-336.test.ts
@@ -0,0 +1,3 @@
+test('equals to 336', ({ expect }) => {
+	expect(336).toBe(336)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-337.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-337.test.ts
new file mode 100644
index 0000000..149476a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-337.test.ts
@@ -0,0 +1,3 @@
+test('equals to 337', ({ expect }) => {
+	expect(337).toBe(337)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-338.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-338.test.ts
new file mode 100644
index 0000000..e04aabf
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-338.test.ts
@@ -0,0 +1,3 @@
+test('equals to 338', ({ expect }) => {
+	expect(338).toBe(338)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-339.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-339.test.ts
new file mode 100644
index 0000000..e2d586c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-339.test.ts
@@ -0,0 +1,3 @@
+test('equals to 339', ({ expect }) => {
+	expect(339).toBe(339)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-340.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-340.test.ts
new file mode 100644
index 0000000..195a6a6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-340.test.ts
@@ -0,0 +1,3 @@
+test('equals to 340', ({ expect }) => {
+	expect(340).toBe(340)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-341.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-341.test.ts
new file mode 100644
index 0000000..d2df70e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-341.test.ts
@@ -0,0 +1,3 @@
+test('equals to 341', ({ expect }) => {
+	expect(341).toBe(341)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-342.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-342.test.ts
new file mode 100644
index 0000000..f4f96a1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-342.test.ts
@@ -0,0 +1,3 @@
+test('equals to 342', ({ expect }) => {
+	expect(342).toBe(342)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-343.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-343.test.ts
new file mode 100644
index 0000000..4dcf1bd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-343.test.ts
@@ -0,0 +1,3 @@
+test('equals to 343', ({ expect }) => {
+	expect(343).toBe(343)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-344.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-344.test.ts
new file mode 100644
index 0000000..186f817
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-344.test.ts
@@ -0,0 +1,3 @@
+test('equals to 344', ({ expect }) => {
+	expect(344).toBe(344)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-345.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-345.test.ts
new file mode 100644
index 0000000..601661a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-345.test.ts
@@ -0,0 +1,3 @@
+test('equals to 345', ({ expect }) => {
+	expect(345).toBe(345)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-346.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-346.test.ts
new file mode 100644
index 0000000..fbebb99
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-346.test.ts
@@ -0,0 +1,3 @@
+test('equals to 346', ({ expect }) => {
+	expect(346).toBe(346)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-347.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-347.test.ts
new file mode 100644
index 0000000..8edddc1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-347.test.ts
@@ -0,0 +1,3 @@
+test('equals to 347', ({ expect }) => {
+	expect(347).toBe(347)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-348.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-348.test.ts
new file mode 100644
index 0000000..3e4267f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-348.test.ts
@@ -0,0 +1,3 @@
+test('equals to 348', ({ expect }) => {
+	expect(348).toBe(348)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-349.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-349.test.ts
new file mode 100644
index 0000000..8266a9f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-349.test.ts
@@ -0,0 +1,3 @@
+test('equals to 349', ({ expect }) => {
+	expect(349).toBe(349)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-350.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-350.test.ts
new file mode 100644
index 0000000..033b5f8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-350.test.ts
@@ -0,0 +1,3 @@
+test('equals to 350', ({ expect }) => {
+	expect(350).toBe(350)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-351.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-351.test.ts
new file mode 100644
index 0000000..66e4f28
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-351.test.ts
@@ -0,0 +1,3 @@
+test('equals to 351', ({ expect }) => {
+	expect(351).toBe(351)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-352.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-352.test.ts
new file mode 100644
index 0000000..3c48a80
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-352.test.ts
@@ -0,0 +1,3 @@
+test('equals to 352', ({ expect }) => {
+	expect(352).toBe(352)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-353.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-353.test.ts
new file mode 100644
index 0000000..70adf43
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-353.test.ts
@@ -0,0 +1,3 @@
+test('equals to 353', ({ expect }) => {
+	expect(353).toBe(353)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-354.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-354.test.ts
new file mode 100644
index 0000000..99196f6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-354.test.ts
@@ -0,0 +1,3 @@
+test('equals to 354', ({ expect }) => {
+	expect(354).toBe(354)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-355.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-355.test.ts
new file mode 100644
index 0000000..942ec94
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-355.test.ts
@@ -0,0 +1,3 @@
+test('equals to 355', ({ expect }) => {
+	expect(355).toBe(355)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-356.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-356.test.ts
new file mode 100644
index 0000000..eea3696
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-356.test.ts
@@ -0,0 +1,3 @@
+test('equals to 356', ({ expect }) => {
+	expect(356).toBe(356)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-357.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-357.test.ts
new file mode 100644
index 0000000..01a9288
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-357.test.ts
@@ -0,0 +1,3 @@
+test('equals to 357', ({ expect }) => {
+	expect(357).toBe(357)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-358.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-358.test.ts
new file mode 100644
index 0000000..08607ce
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-358.test.ts
@@ -0,0 +1,3 @@
+test('equals to 358', ({ expect }) => {
+	expect(358).toBe(358)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-359.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-359.test.ts
new file mode 100644
index 0000000..81f089b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-359.test.ts
@@ -0,0 +1,3 @@
+test('equals to 359', ({ expect }) => {
+	expect(359).toBe(359)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-360.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-360.test.ts
new file mode 100644
index 0000000..7be8d7f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-360.test.ts
@@ -0,0 +1,3 @@
+test('equals to 360', ({ expect }) => {
+	expect(360).toBe(360)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-361.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-361.test.ts
new file mode 100644
index 0000000..325029c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-361.test.ts
@@ -0,0 +1,3 @@
+test('equals to 361', ({ expect }) => {
+	expect(361).toBe(361)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-362.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-362.test.ts
new file mode 100644
index 0000000..367fb73
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-362.test.ts
@@ -0,0 +1,3 @@
+test('equals to 362', ({ expect }) => {
+	expect(362).toBe(362)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-363.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-363.test.ts
new file mode 100644
index 0000000..54b8f65
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-363.test.ts
@@ -0,0 +1,3 @@
+test('equals to 363', ({ expect }) => {
+	expect(363).toBe(363)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-364.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-364.test.ts
new file mode 100644
index 0000000..8eb19b3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-364.test.ts
@@ -0,0 +1,3 @@
+test('equals to 364', ({ expect }) => {
+	expect(364).toBe(364)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-365.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-365.test.ts
new file mode 100644
index 0000000..ec57d53
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-365.test.ts
@@ -0,0 +1,3 @@
+test('equals to 365', ({ expect }) => {
+	expect(365).toBe(365)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-366.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-366.test.ts
new file mode 100644
index 0000000..8b1f67c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-366.test.ts
@@ -0,0 +1,3 @@
+test('equals to 366', ({ expect }) => {
+	expect(366).toBe(366)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-367.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-367.test.ts
new file mode 100644
index 0000000..a04d499
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-367.test.ts
@@ -0,0 +1,3 @@
+test('equals to 367', ({ expect }) => {
+	expect(367).toBe(367)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-368.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-368.test.ts
new file mode 100644
index 0000000..1ae870c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-368.test.ts
@@ -0,0 +1,3 @@
+test('equals to 368', ({ expect }) => {
+	expect(368).toBe(368)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-369.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-369.test.ts
new file mode 100644
index 0000000..45ddbd9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-369.test.ts
@@ -0,0 +1,3 @@
+test('equals to 369', ({ expect }) => {
+	expect(369).toBe(369)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-370.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-370.test.ts
new file mode 100644
index 0000000..692d0fd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-370.test.ts
@@ -0,0 +1,3 @@
+test('equals to 370', ({ expect }) => {
+	expect(370).toBe(370)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-371.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-371.test.ts
new file mode 100644
index 0000000..5031b94
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-371.test.ts
@@ -0,0 +1,3 @@
+test('equals to 371', ({ expect }) => {
+	expect(371).toBe(371)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-372.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-372.test.ts
new file mode 100644
index 0000000..2e171f8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-372.test.ts
@@ -0,0 +1,3 @@
+test('equals to 372', ({ expect }) => {
+	expect(372).toBe(372)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-373.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-373.test.ts
new file mode 100644
index 0000000..0d68891
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-373.test.ts
@@ -0,0 +1,3 @@
+test('equals to 373', ({ expect }) => {
+	expect(373).toBe(373)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-374.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-374.test.ts
new file mode 100644
index 0000000..59ad7a9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-374.test.ts
@@ -0,0 +1,3 @@
+test('equals to 374', ({ expect }) => {
+	expect(374).toBe(374)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-375.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-375.test.ts
new file mode 100644
index 0000000..26808b1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-375.test.ts
@@ -0,0 +1,3 @@
+test('equals to 375', ({ expect }) => {
+	expect(375).toBe(375)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-376.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-376.test.ts
new file mode 100644
index 0000000..f5bd1d9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-376.test.ts
@@ -0,0 +1,3 @@
+test('equals to 376', ({ expect }) => {
+	expect(376).toBe(376)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-377.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-377.test.ts
new file mode 100644
index 0000000..bb4087f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-377.test.ts
@@ -0,0 +1,3 @@
+test('equals to 377', ({ expect }) => {
+	expect(377).toBe(377)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-378.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-378.test.ts
new file mode 100644
index 0000000..30c5f2f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-378.test.ts
@@ -0,0 +1,3 @@
+test('equals to 378', ({ expect }) => {
+	expect(378).toBe(378)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-379.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-379.test.ts
new file mode 100644
index 0000000..dc9ce96
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-379.test.ts
@@ -0,0 +1,3 @@
+test('equals to 379', ({ expect }) => {
+	expect(379).toBe(379)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-380.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-380.test.ts
new file mode 100644
index 0000000..4763512
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-380.test.ts
@@ -0,0 +1,3 @@
+test('equals to 380', ({ expect }) => {
+	expect(380).toBe(380)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-381.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-381.test.ts
new file mode 100644
index 0000000..e04a0ce
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-381.test.ts
@@ -0,0 +1,3 @@
+test('equals to 381', ({ expect }) => {
+	expect(381).toBe(381)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-382.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-382.test.ts
new file mode 100644
index 0000000..1bd6fec
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-382.test.ts
@@ -0,0 +1,3 @@
+test('equals to 382', ({ expect }) => {
+	expect(382).toBe(382)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-383.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-383.test.ts
new file mode 100644
index 0000000..320238a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-383.test.ts
@@ -0,0 +1,3 @@
+test('equals to 383', ({ expect }) => {
+	expect(383).toBe(383)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-384.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-384.test.ts
new file mode 100644
index 0000000..246277c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-384.test.ts
@@ -0,0 +1,3 @@
+test('equals to 384', ({ expect }) => {
+	expect(384).toBe(384)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-385.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-385.test.ts
new file mode 100644
index 0000000..ae1a2ba
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-385.test.ts
@@ -0,0 +1,3 @@
+test('equals to 385', ({ expect }) => {
+	expect(385).toBe(385)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-386.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-386.test.ts
new file mode 100644
index 0000000..a1f6e79
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-386.test.ts
@@ -0,0 +1,3 @@
+test('equals to 386', ({ expect }) => {
+	expect(386).toBe(386)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-387.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-387.test.ts
new file mode 100644
index 0000000..444886e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-387.test.ts
@@ -0,0 +1,3 @@
+test('equals to 387', ({ expect }) => {
+	expect(387).toBe(387)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-388.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-388.test.ts
new file mode 100644
index 0000000..5990b38
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-388.test.ts
@@ -0,0 +1,3 @@
+test('equals to 388', ({ expect }) => {
+	expect(388).toBe(388)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-389.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-389.test.ts
new file mode 100644
index 0000000..8159e0d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-389.test.ts
@@ -0,0 +1,3 @@
+test('equals to 389', ({ expect }) => {
+	expect(389).toBe(389)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-390.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-390.test.ts
new file mode 100644
index 0000000..cf193a8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-390.test.ts
@@ -0,0 +1,3 @@
+test('equals to 390', ({ expect }) => {
+	expect(390).toBe(390)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-391.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-391.test.ts
new file mode 100644
index 0000000..4ace55a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-391.test.ts
@@ -0,0 +1,3 @@
+test('equals to 391', ({ expect }) => {
+	expect(391).toBe(391)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-392.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-392.test.ts
new file mode 100644
index 0000000..9b619c7
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-392.test.ts
@@ -0,0 +1,3 @@
+test('equals to 392', ({ expect }) => {
+	expect(392).toBe(392)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-393.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-393.test.ts
new file mode 100644
index 0000000..0644482
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-393.test.ts
@@ -0,0 +1,3 @@
+test('equals to 393', ({ expect }) => {
+	expect(393).toBe(393)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-394.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-394.test.ts
new file mode 100644
index 0000000..1b77111
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-394.test.ts
@@ -0,0 +1,3 @@
+test('equals to 394', ({ expect }) => {
+	expect(394).toBe(394)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-395.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-395.test.ts
new file mode 100644
index 0000000..f2c92c6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-395.test.ts
@@ -0,0 +1,3 @@
+test('equals to 395', ({ expect }) => {
+	expect(395).toBe(395)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-396.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-396.test.ts
new file mode 100644
index 0000000..fac5dbd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-396.test.ts
@@ -0,0 +1,3 @@
+test('equals to 396', ({ expect }) => {
+	expect(396).toBe(396)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-397.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-397.test.ts
new file mode 100644
index 0000000..843562b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-397.test.ts
@@ -0,0 +1,3 @@
+test('equals to 397', ({ expect }) => {
+	expect(397).toBe(397)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-398.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-398.test.ts
new file mode 100644
index 0000000..b394870
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-398.test.ts
@@ -0,0 +1,3 @@
+test('equals to 398', ({ expect }) => {
+	expect(398).toBe(398)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-399.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-399.test.ts
new file mode 100644
index 0000000..e09b31f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-399.test.ts
@@ -0,0 +1,3 @@
+test('equals to 399', ({ expect }) => {
+	expect(399).toBe(399)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-400.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-400.test.ts
new file mode 100644
index 0000000..28d4599
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-400.test.ts
@@ -0,0 +1,3 @@
+test('equals to 400', ({ expect }) => {
+	expect(400).toBe(400)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-401.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-401.test.ts
new file mode 100644
index 0000000..94db346
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-401.test.ts
@@ -0,0 +1,3 @@
+test('equals to 401', ({ expect }) => {
+	expect(401).toBe(401)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-402.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-402.test.ts
new file mode 100644
index 0000000..635132d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-402.test.ts
@@ -0,0 +1,3 @@
+test('equals to 402', ({ expect }) => {
+	expect(402).toBe(402)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-403.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-403.test.ts
new file mode 100644
index 0000000..d78e68a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-403.test.ts
@@ -0,0 +1,3 @@
+test('equals to 403', ({ expect }) => {
+	expect(403).toBe(403)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-404.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-404.test.ts
new file mode 100644
index 0000000..cdbc647
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-404.test.ts
@@ -0,0 +1,3 @@
+test('equals to 404', ({ expect }) => {
+	expect(404).toBe(404)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-405.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-405.test.ts
new file mode 100644
index 0000000..1eea34c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-405.test.ts
@@ -0,0 +1,3 @@
+test('equals to 405', ({ expect }) => {
+	expect(405).toBe(405)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-406.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-406.test.ts
new file mode 100644
index 0000000..1fc870a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-406.test.ts
@@ -0,0 +1,3 @@
+test('equals to 406', ({ expect }) => {
+	expect(406).toBe(406)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-407.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-407.test.ts
new file mode 100644
index 0000000..b19e58c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-407.test.ts
@@ -0,0 +1,3 @@
+test('equals to 407', ({ expect }) => {
+	expect(407).toBe(407)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-408.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-408.test.ts
new file mode 100644
index 0000000..f5e8184
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-408.test.ts
@@ -0,0 +1,3 @@
+test('equals to 408', ({ expect }) => {
+	expect(408).toBe(408)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-409.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-409.test.ts
new file mode 100644
index 0000000..62da607
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-409.test.ts
@@ -0,0 +1,3 @@
+test('equals to 409', ({ expect }) => {
+	expect(409).toBe(409)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-410.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-410.test.ts
new file mode 100644
index 0000000..29cc2cf
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-410.test.ts
@@ -0,0 +1,3 @@
+test('equals to 410', ({ expect }) => {
+	expect(410).toBe(410)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-411.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-411.test.ts
new file mode 100644
index 0000000..459ce3d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-411.test.ts
@@ -0,0 +1,3 @@
+test('equals to 411', ({ expect }) => {
+	expect(411).toBe(411)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-412.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-412.test.ts
new file mode 100644
index 0000000..8941f43
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-412.test.ts
@@ -0,0 +1,3 @@
+test('equals to 412', ({ expect }) => {
+	expect(412).toBe(412)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-413.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-413.test.ts
new file mode 100644
index 0000000..1efec82
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-413.test.ts
@@ -0,0 +1,3 @@
+test('equals to 413', ({ expect }) => {
+	expect(413).toBe(413)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-414.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-414.test.ts
new file mode 100644
index 0000000..a406936
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-414.test.ts
@@ -0,0 +1,3 @@
+test('equals to 414', ({ expect }) => {
+	expect(414).toBe(414)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-415.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-415.test.ts
new file mode 100644
index 0000000..e83d2e2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-415.test.ts
@@ -0,0 +1,3 @@
+test('equals to 415', ({ expect }) => {
+	expect(415).toBe(415)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-416.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-416.test.ts
new file mode 100644
index 0000000..dfaf018
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-416.test.ts
@@ -0,0 +1,3 @@
+test('equals to 416', ({ expect }) => {
+	expect(416).toBe(416)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-417.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-417.test.ts
new file mode 100644
index 0000000..716ea0d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-417.test.ts
@@ -0,0 +1,3 @@
+test('equals to 417', ({ expect }) => {
+	expect(417).toBe(417)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-418.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-418.test.ts
new file mode 100644
index 0000000..ea37f46
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-418.test.ts
@@ -0,0 +1,3 @@
+test('equals to 418', ({ expect }) => {
+	expect(418).toBe(418)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-419.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-419.test.ts
new file mode 100644
index 0000000..bf0e0a3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-419.test.ts
@@ -0,0 +1,3 @@
+test('equals to 419', ({ expect }) => {
+	expect(419).toBe(419)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-420.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-420.test.ts
new file mode 100644
index 0000000..1588434
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-420.test.ts
@@ -0,0 +1,3 @@
+test('equals to 420', ({ expect }) => {
+	expect(420).toBe(420)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-421.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-421.test.ts
new file mode 100644
index 0000000..6bc0bd3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-421.test.ts
@@ -0,0 +1,3 @@
+test('equals to 421', ({ expect }) => {
+	expect(421).toBe(421)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-422.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-422.test.ts
new file mode 100644
index 0000000..4381e9d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-422.test.ts
@@ -0,0 +1,3 @@
+test('equals to 422', ({ expect }) => {
+	expect(422).toBe(422)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-423.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-423.test.ts
new file mode 100644
index 0000000..570e2b8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-423.test.ts
@@ -0,0 +1,3 @@
+test('equals to 423', ({ expect }) => {
+	expect(423).toBe(423)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-424.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-424.test.ts
new file mode 100644
index 0000000..8804ef5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-424.test.ts
@@ -0,0 +1,3 @@
+test('equals to 424', ({ expect }) => {
+	expect(424).toBe(424)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-425.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-425.test.ts
new file mode 100644
index 0000000..ca4803e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-425.test.ts
@@ -0,0 +1,3 @@
+test('equals to 425', ({ expect }) => {
+	expect(425).toBe(425)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-426.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-426.test.ts
new file mode 100644
index 0000000..78a55ec
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-426.test.ts
@@ -0,0 +1,3 @@
+test('equals to 426', ({ expect }) => {
+	expect(426).toBe(426)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-427.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-427.test.ts
new file mode 100644
index 0000000..f176934
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-427.test.ts
@@ -0,0 +1,3 @@
+test('equals to 427', ({ expect }) => {
+	expect(427).toBe(427)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-428.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-428.test.ts
new file mode 100644
index 0000000..09c1a83
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-428.test.ts
@@ -0,0 +1,3 @@
+test('equals to 428', ({ expect }) => {
+	expect(428).toBe(428)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-429.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-429.test.ts
new file mode 100644
index 0000000..1c34c9a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-429.test.ts
@@ -0,0 +1,3 @@
+test('equals to 429', ({ expect }) => {
+	expect(429).toBe(429)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-430.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-430.test.ts
new file mode 100644
index 0000000..264a322
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-430.test.ts
@@ -0,0 +1,3 @@
+test('equals to 430', ({ expect }) => {
+	expect(430).toBe(430)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-431.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-431.test.ts
new file mode 100644
index 0000000..22f1d9b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-431.test.ts
@@ -0,0 +1,3 @@
+test('equals to 431', ({ expect }) => {
+	expect(431).toBe(431)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-432.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-432.test.ts
new file mode 100644
index 0000000..74c04e3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-432.test.ts
@@ -0,0 +1,3 @@
+test('equals to 432', ({ expect }) => {
+	expect(432).toBe(432)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-433.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-433.test.ts
new file mode 100644
index 0000000..3368c28
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-433.test.ts
@@ -0,0 +1,3 @@
+test('equals to 433', ({ expect }) => {
+	expect(433).toBe(433)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-434.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-434.test.ts
new file mode 100644
index 0000000..f532272
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-434.test.ts
@@ -0,0 +1,3 @@
+test('equals to 434', ({ expect }) => {
+	expect(434).toBe(434)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-435.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-435.test.ts
new file mode 100644
index 0000000..4bcb5e4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-435.test.ts
@@ -0,0 +1,3 @@
+test('equals to 435', ({ expect }) => {
+	expect(435).toBe(435)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-436.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-436.test.ts
new file mode 100644
index 0000000..5ce85ab
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-436.test.ts
@@ -0,0 +1,3 @@
+test('equals to 436', ({ expect }) => {
+	expect(436).toBe(436)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-437.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-437.test.ts
new file mode 100644
index 0000000..2cfad0f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-437.test.ts
@@ -0,0 +1,3 @@
+test('equals to 437', ({ expect }) => {
+	expect(437).toBe(437)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-438.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-438.test.ts
new file mode 100644
index 0000000..7065468
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-438.test.ts
@@ -0,0 +1,3 @@
+test('equals to 438', ({ expect }) => {
+	expect(438).toBe(438)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-439.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-439.test.ts
new file mode 100644
index 0000000..11ece64
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-439.test.ts
@@ -0,0 +1,3 @@
+test('equals to 439', ({ expect }) => {
+	expect(439).toBe(439)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-440.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-440.test.ts
new file mode 100644
index 0000000..3e84eb9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-440.test.ts
@@ -0,0 +1,3 @@
+test('equals to 440', ({ expect }) => {
+	expect(440).toBe(440)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-441.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-441.test.ts
new file mode 100644
index 0000000..d8f0fe1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-441.test.ts
@@ -0,0 +1,3 @@
+test('equals to 441', ({ expect }) => {
+	expect(441).toBe(441)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-442.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-442.test.ts
new file mode 100644
index 0000000..f4902e5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-442.test.ts
@@ -0,0 +1,3 @@
+test('equals to 442', ({ expect }) => {
+	expect(442).toBe(442)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-443.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-443.test.ts
new file mode 100644
index 0000000..5d9c17e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-443.test.ts
@@ -0,0 +1,3 @@
+test('equals to 443', ({ expect }) => {
+	expect(443).toBe(443)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-444.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-444.test.ts
new file mode 100644
index 0000000..7244f13
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-444.test.ts
@@ -0,0 +1,3 @@
+test('equals to 444', ({ expect }) => {
+	expect(444).toBe(444)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-445.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-445.test.ts
new file mode 100644
index 0000000..79b910e
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-445.test.ts
@@ -0,0 +1,3 @@
+test('equals to 445', ({ expect }) => {
+	expect(445).toBe(445)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-446.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-446.test.ts
new file mode 100644
index 0000000..4070d98
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-446.test.ts
@@ -0,0 +1,3 @@
+test('equals to 446', ({ expect }) => {
+	expect(446).toBe(446)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-447.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-447.test.ts
new file mode 100644
index 0000000..c5c87f6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-447.test.ts
@@ -0,0 +1,3 @@
+test('equals to 447', ({ expect }) => {
+	expect(447).toBe(447)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-448.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-448.test.ts
new file mode 100644
index 0000000..50a1719
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-448.test.ts
@@ -0,0 +1,3 @@
+test('equals to 448', ({ expect }) => {
+	expect(448).toBe(448)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-449.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-449.test.ts
new file mode 100644
index 0000000..3c2caea
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-449.test.ts
@@ -0,0 +1,3 @@
+test('equals to 449', ({ expect }) => {
+	expect(449).toBe(449)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-450.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-450.test.ts
new file mode 100644
index 0000000..5b503f1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-450.test.ts
@@ -0,0 +1,3 @@
+test('equals to 450', ({ expect }) => {
+	expect(450).toBe(450)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-451.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-451.test.ts
new file mode 100644
index 0000000..5129c58
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-451.test.ts
@@ -0,0 +1,3 @@
+test('equals to 451', ({ expect }) => {
+	expect(451).toBe(451)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-452.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-452.test.ts
new file mode 100644
index 0000000..a47d4dd
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-452.test.ts
@@ -0,0 +1,3 @@
+test('equals to 452', ({ expect }) => {
+	expect(452).toBe(452)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-453.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-453.test.ts
new file mode 100644
index 0000000..784f6a6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-453.test.ts
@@ -0,0 +1,3 @@
+test('equals to 453', ({ expect }) => {
+	expect(453).toBe(453)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-454.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-454.test.ts
new file mode 100644
index 0000000..592f94f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-454.test.ts
@@ -0,0 +1,3 @@
+test('equals to 454', ({ expect }) => {
+	expect(454).toBe(454)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-455.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-455.test.ts
new file mode 100644
index 0000000..665cc9b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-455.test.ts
@@ -0,0 +1,3 @@
+test('equals to 455', ({ expect }) => {
+	expect(455).toBe(455)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-456.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-456.test.ts
new file mode 100644
index 0000000..80ca011
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-456.test.ts
@@ -0,0 +1,3 @@
+test('equals to 456', ({ expect }) => {
+	expect(456).toBe(456)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-457.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-457.test.ts
new file mode 100644
index 0000000..65cef6b
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-457.test.ts
@@ -0,0 +1,3 @@
+test('equals to 457', ({ expect }) => {
+	expect(457).toBe(457)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-458.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-458.test.ts
new file mode 100644
index 0000000..bb79d1a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-458.test.ts
@@ -0,0 +1,3 @@
+test('equals to 458', ({ expect }) => {
+	expect(458).toBe(458)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-459.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-459.test.ts
new file mode 100644
index 0000000..2b5da0f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-459.test.ts
@@ -0,0 +1,3 @@
+test('equals to 459', ({ expect }) => {
+	expect(459).toBe(459)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-460.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-460.test.ts
new file mode 100644
index 0000000..7af3266
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-460.test.ts
@@ -0,0 +1,3 @@
+test('equals to 460', ({ expect }) => {
+	expect(460).toBe(460)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-461.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-461.test.ts
new file mode 100644
index 0000000..c945900
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-461.test.ts
@@ -0,0 +1,3 @@
+test('equals to 461', ({ expect }) => {
+	expect(461).toBe(461)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-462.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-462.test.ts
new file mode 100644
index 0000000..23199b3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-462.test.ts
@@ -0,0 +1,3 @@
+test('equals to 462', ({ expect }) => {
+	expect(462).toBe(462)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-463.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-463.test.ts
new file mode 100644
index 0000000..cdfbfd0
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-463.test.ts
@@ -0,0 +1,3 @@
+test('equals to 463', ({ expect }) => {
+	expect(463).toBe(463)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-464.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-464.test.ts
new file mode 100644
index 0000000..a9ec565
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-464.test.ts
@@ -0,0 +1,3 @@
+test('equals to 464', ({ expect }) => {
+	expect(464).toBe(464)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-465.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-465.test.ts
new file mode 100644
index 0000000..140a4f5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-465.test.ts
@@ -0,0 +1,3 @@
+test('equals to 465', ({ expect }) => {
+	expect(465).toBe(465)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-466.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-466.test.ts
new file mode 100644
index 0000000..88e656a
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-466.test.ts
@@ -0,0 +1,3 @@
+test('equals to 466', ({ expect }) => {
+	expect(466).toBe(466)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-467.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-467.test.ts
new file mode 100644
index 0000000..c51efa4
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-467.test.ts
@@ -0,0 +1,3 @@
+test('equals to 467', ({ expect }) => {
+	expect(467).toBe(467)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-468.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-468.test.ts
new file mode 100644
index 0000000..f27d219
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-468.test.ts
@@ -0,0 +1,3 @@
+test('equals to 468', ({ expect }) => {
+	expect(468).toBe(468)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-469.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-469.test.ts
new file mode 100644
index 0000000..91dca65
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-469.test.ts
@@ -0,0 +1,3 @@
+test('equals to 469', ({ expect }) => {
+	expect(469).toBe(469)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-470.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-470.test.ts
new file mode 100644
index 0000000..4d1974f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-470.test.ts
@@ -0,0 +1,3 @@
+test('equals to 470', ({ expect }) => {
+	expect(470).toBe(470)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-471.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-471.test.ts
new file mode 100644
index 0000000..917e7a5
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-471.test.ts
@@ -0,0 +1,3 @@
+test('equals to 471', ({ expect }) => {
+	expect(471).toBe(471)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-472.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-472.test.ts
new file mode 100644
index 0000000..714b4a2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-472.test.ts
@@ -0,0 +1,3 @@
+test('equals to 472', ({ expect }) => {
+	expect(472).toBe(472)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-473.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-473.test.ts
new file mode 100644
index 0000000..941dc75
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-473.test.ts
@@ -0,0 +1,3 @@
+test('equals to 473', ({ expect }) => {
+	expect(473).toBe(473)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-474.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-474.test.ts
new file mode 100644
index 0000000..203c785
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-474.test.ts
@@ -0,0 +1,3 @@
+test('equals to 474', ({ expect }) => {
+	expect(474).toBe(474)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-475.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-475.test.ts
new file mode 100644
index 0000000..d6b9de6
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-475.test.ts
@@ -0,0 +1,3 @@
+test('equals to 475', ({ expect }) => {
+	expect(475).toBe(475)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-476.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-476.test.ts
new file mode 100644
index 0000000..9104398
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-476.test.ts
@@ -0,0 +1,3 @@
+test('equals to 476', ({ expect }) => {
+	expect(476).toBe(476)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-477.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-477.test.ts
new file mode 100644
index 0000000..65d869d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-477.test.ts
@@ -0,0 +1,3 @@
+test('equals to 477', ({ expect }) => {
+	expect(477).toBe(477)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-478.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-478.test.ts
new file mode 100644
index 0000000..025a922
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-478.test.ts
@@ -0,0 +1,3 @@
+test('equals to 478', ({ expect }) => {
+	expect(478).toBe(478)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-479.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-479.test.ts
new file mode 100644
index 0000000..8183829
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-479.test.ts
@@ -0,0 +1,3 @@
+test('equals to 479', ({ expect }) => {
+	expect(479).toBe(479)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-480.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-480.test.ts
new file mode 100644
index 0000000..31601b8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-480.test.ts
@@ -0,0 +1,3 @@
+test('equals to 480', ({ expect }) => {
+	expect(480).toBe(480)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-481.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-481.test.ts
new file mode 100644
index 0000000..aa6d0c1
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-481.test.ts
@@ -0,0 +1,3 @@
+test('equals to 481', ({ expect }) => {
+	expect(481).toBe(481)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-482.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-482.test.ts
new file mode 100644
index 0000000..ebb12c2
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-482.test.ts
@@ -0,0 +1,3 @@
+test('equals to 482', ({ expect }) => {
+	expect(482).toBe(482)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-483.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-483.test.ts
new file mode 100644
index 0000000..344b048
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-483.test.ts
@@ -0,0 +1,3 @@
+test('equals to 483', ({ expect }) => {
+	expect(483).toBe(483)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-484.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-484.test.ts
new file mode 100644
index 0000000..ee59ad9
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-484.test.ts
@@ -0,0 +1,3 @@
+test('equals to 484', ({ expect }) => {
+	expect(484).toBe(484)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-485.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-485.test.ts
new file mode 100644
index 0000000..008e82f
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-485.test.ts
@@ -0,0 +1,3 @@
+test('equals to 485', ({ expect }) => {
+	expect(485).toBe(485)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-486.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-486.test.ts
new file mode 100644
index 0000000..957d4fa
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-486.test.ts
@@ -0,0 +1,3 @@
+test('equals to 486', ({ expect }) => {
+	expect(486).toBe(486)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-487.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-487.test.ts
new file mode 100644
index 0000000..7994003
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-487.test.ts
@@ -0,0 +1,3 @@
+test('equals to 487', ({ expect }) => {
+	expect(487).toBe(487)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-488.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-488.test.ts
new file mode 100644
index 0000000..4580865
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-488.test.ts
@@ -0,0 +1,3 @@
+test('equals to 488', ({ expect }) => {
+	expect(488).toBe(488)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-489.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-489.test.ts
new file mode 100644
index 0000000..59ae43c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-489.test.ts
@@ -0,0 +1,3 @@
+test('equals to 489', ({ expect }) => {
+	expect(489).toBe(489)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-490.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-490.test.ts
new file mode 100644
index 0000000..3f5b5c8
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-490.test.ts
@@ -0,0 +1,3 @@
+test('equals to 490', ({ expect }) => {
+	expect(490).toBe(490)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-491.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-491.test.ts
new file mode 100644
index 0000000..13cbb7c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-491.test.ts
@@ -0,0 +1,3 @@
+test('equals to 491', ({ expect }) => {
+	expect(491).toBe(491)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-492.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-492.test.ts
new file mode 100644
index 0000000..9db1e77
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-492.test.ts
@@ -0,0 +1,3 @@
+test('equals to 492', ({ expect }) => {
+	expect(492).toBe(492)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-493.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-493.test.ts
new file mode 100644
index 0000000..8809d86
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-493.test.ts
@@ -0,0 +1,3 @@
+test('equals to 493', ({ expect }) => {
+	expect(493).toBe(493)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-494.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-494.test.ts
new file mode 100644
index 0000000..d4942f3
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-494.test.ts
@@ -0,0 +1,3 @@
+test('equals to 494', ({ expect }) => {
+	expect(494).toBe(494)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-495.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-495.test.ts
new file mode 100644
index 0000000..ed41405
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-495.test.ts
@@ -0,0 +1,3 @@
+test('equals to 495', ({ expect }) => {
+	expect(495).toBe(495)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-496.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-496.test.ts
new file mode 100644
index 0000000..b67291c
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-496.test.ts
@@ -0,0 +1,3 @@
+test('equals to 496', ({ expect }) => {
+	expect(496).toBe(496)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-497.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-497.test.ts
new file mode 100644
index 0000000..b3a71cc
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-497.test.ts
@@ -0,0 +1,3 @@
+test('equals to 497', ({ expect }) => {
+	expect(497).toBe(497)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-498.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-498.test.ts
new file mode 100644
index 0000000..902ea35
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-498.test.ts
@@ -0,0 +1,3 @@
+test('equals to 498', ({ expect }) => {
+	expect(498).toBe(498)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-499.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-499.test.ts
new file mode 100644
index 0000000..50ee276
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-499.test.ts
@@ -0,0 +1,3 @@
+test('equals to 499', ({ expect }) => {
+	expect(499).toBe(499)
+})
diff --git a/exercises/04.performance/03.problem.test-isolation/tests/test-500.test.ts b/exercises/04.performance/03.problem.test-isolation/tests/test-500.test.ts
new file mode 100644
index 0000000..8cae10d
--- /dev/null
+++ b/exercises/04.performance/03.problem.test-isolation/tests/test-500.test.ts
@@ -0,0 +1,3 @@
+test('equals to 500', ({ expect }) => {
+	expect(500).toBe(500)
+})
diff --git a/exercises/04.performance/04.problem.sharding/epicshop/.diffignore b/exercises/04.performance/04.problem.sharding/epicshop/.diffignore
new file mode 100644
index 0000000..a3a37ef
--- /dev/null
+++ b/exercises/04.performance/04.problem.sharding/epicshop/.diffignore
@@ -0,0 +1 @@
+vitest.config.ts
\ No newline at end of file
diff --git a/exercises/04.performance/04.solution.sharding/epicshop/.diffignore b/exercises/04.performance/04.solution.sharding/epicshop/.diffignore
new file mode 100644
index 0000000..a3a37ef
--- /dev/null
+++ b/exercises/04.performance/04.solution.sharding/epicshop/.diffignore
@@ -0,0 +1 @@
+vitest.config.ts
\ No newline at end of file