diff --git a/problem_4.py b/problem_4.py
new file mode 100644
index 0000000..e7965be
--- /dev/null
+++ b/problem_4.py
@@ -0,0 +1,6 @@
+if __name__ == '__main__':
+    x = int(input())
+    y = int(input())
+    z = int(input())
+    n = int(input())
+    print( [[i,j,k] for i in range(x+1) for j in range(y+1) for k in range(z+1) if i+j+k!=n] )