diff --git a/appLab1/build.gradle.kts b/appLab1/build.gradle.kts
index 32f2b3a..9d3c32e 100644
--- a/appLab1/build.gradle.kts
+++ b/appLab1/build.gradle.kts
@@ -22,7 +22,7 @@ java {
 }
 
 application {
-	mainClass = "com.github.hummel.ads.MainKt"
+	mainClass = "com.github.hummel.ads.lab1.MainKt"
 }
 
 tasks {
@@ -33,7 +33,7 @@ tasks {
 		manifest {
 			attributes(
 				mapOf(
-					"Main-Class" to "com.github.hummel.ads.MainKt"
+					"Main-Class" to "com.github.hummel.ads.lab1.MainKt"
 				)
 			)
 		}
diff --git a/appLab1/src/main/kotlin/com/github/hummel/ads/Main.kt b/appLab1/src/main/kotlin/com/github/hummel/ads/lab1/Main.kt
similarity index 99%
rename from appLab1/src/main/kotlin/com/github/hummel/ads/Main.kt
rename to appLab1/src/main/kotlin/com/github/hummel/ads/lab1/Main.kt
index 2728370..08a539d 100644
--- a/appLab1/src/main/kotlin/com/github/hummel/ads/Main.kt
+++ b/appLab1/src/main/kotlin/com/github/hummel/ads/lab1/Main.kt
@@ -1,4 +1,4 @@
-package com.github.hummel.ads
+package com.github.hummel.ads.lab1
 
 import hummel.Room.RoomType
 import hummel.Room.WindowType
diff --git a/appLab2/build.gradle.kts b/appLab2/build.gradle.kts
index 32f2b3a..8dc08e4 100644
--- a/appLab2/build.gradle.kts
+++ b/appLab2/build.gradle.kts
@@ -22,7 +22,7 @@ java {
 }
 
 application {
-	mainClass = "com.github.hummel.ads.MainKt"
+	mainClass = "com.github.hummel.ads.lab2.MainKt"
 }
 
 tasks {
@@ -33,7 +33,7 @@ tasks {
 		manifest {
 			attributes(
 				mapOf(
-					"Main-Class" to "com.github.hummel.ads.MainKt"
+					"Main-Class" to "com.github.hummel.ads.lab2.MainKt"
 				)
 			)
 		}
diff --git a/appLab2/src/main/kotlin/com/github/hummel/ads/Main.kt b/appLab2/src/main/kotlin/com/github/hummel/ads/lab2/Main.kt
similarity index 99%
rename from appLab2/src/main/kotlin/com/github/hummel/ads/Main.kt
rename to appLab2/src/main/kotlin/com/github/hummel/ads/lab2/Main.kt
index 0b04cb9..817a482 100644
--- a/appLab2/src/main/kotlin/com/github/hummel/ads/Main.kt
+++ b/appLab2/src/main/kotlin/com/github/hummel/ads/lab2/Main.kt
@@ -1,4 +1,4 @@
-package com.github.hummel.ads
+package com.github.hummel.ads.lab2
 
 private var list: MutableList<Item> = ArrayList()
 
diff --git a/appLab3/build.gradle.kts b/appLab3/build.gradle.kts
index 32f2b3a..8f17014 100644
--- a/appLab3/build.gradle.kts
+++ b/appLab3/build.gradle.kts
@@ -22,7 +22,7 @@ java {
 }
 
 application {
-	mainClass = "com.github.hummel.ads.MainKt"
+	mainClass = "com.github.hummel.ads.lab3.MainKt"
 }
 
 tasks {
@@ -33,7 +33,7 @@ tasks {
 		manifest {
 			attributes(
 				mapOf(
-					"Main-Class" to "com.github.hummel.ads.MainKt"
+					"Main-Class" to "com.github.hummel.ads.lab3.MainKt"
 				)
 			)
 		}
diff --git a/appLab3/src/main/kotlin/com/github/hummel/ads/Main.kt b/appLab3/src/main/kotlin/com/github/hummel/ads/lab3/Main.kt
similarity index 99%
rename from appLab3/src/main/kotlin/com/github/hummel/ads/Main.kt
rename to appLab3/src/main/kotlin/com/github/hummel/ads/lab3/Main.kt
index 1714481..b79dcb0 100644
--- a/appLab3/src/main/kotlin/com/github/hummel/ads/Main.kt
+++ b/appLab3/src/main/kotlin/com/github/hummel/ads/lab3/Main.kt
@@ -1,4 +1,4 @@
-package com.github.hummel.ads
+package com.github.hummel.ads.lab3
 
 private const val rr: String = "R) --> "
 private const val l: String = "L) "
diff --git a/appLab4/build.gradle.kts b/appLab4/build.gradle.kts
index 32f2b3a..0d1804a 100644
--- a/appLab4/build.gradle.kts
+++ b/appLab4/build.gradle.kts
@@ -22,7 +22,7 @@ java {
 }
 
 application {
-	mainClass = "com.github.hummel.ads.MainKt"
+	mainClass = "com.github.hummel.ads.lab4.MainKt"
 }
 
 tasks {
@@ -33,7 +33,7 @@ tasks {
 		manifest {
 			attributes(
 				mapOf(
-					"Main-Class" to "com.github.hummel.ads.MainKt"
+					"Main-Class" to "com.github.hummel.ads.lab4.MainKt"
 				)
 			)
 		}
diff --git a/appLab4/src/main/kotlin/com/github/hummel/ads/Main.kt b/appLab4/src/main/kotlin/com/github/hummel/ads/lab4/Main.kt
similarity index 99%
rename from appLab4/src/main/kotlin/com/github/hummel/ads/Main.kt
rename to appLab4/src/main/kotlin/com/github/hummel/ads/lab4/Main.kt
index e2048fd..21d4b7a 100644
--- a/appLab4/src/main/kotlin/com/github/hummel/ads/Main.kt
+++ b/appLab4/src/main/kotlin/com/github/hummel/ads/lab4/Main.kt
@@ -1,4 +1,4 @@
-package com.github.hummel.ads
+package com.github.hummel.ads.lab4
 
 import java.util.*
 import kotlin.math.max