diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/build.gradle.kts b/build.gradle.kts
index 08780a4..cb2df04 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -20,7 +20,7 @@ tasks.test {
 }
 
 kotlin {
-    jvmToolchain(11)
+    jvmToolchain(17)
 }
 
 detekt {
diff --git a/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt b/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
index 20d40f2..db3dfbc 100644
--- a/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
+++ b/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
@@ -1,5 +1,10 @@
 package mate.academy
 
-fun processAndFilterNumbers(numbers: List<Int>): List<Int> {
+private const val TWO = 2
+private const val THRESHOLD = 25
 
+fun processAndFilterNumbers(numbers: List<Int>): List<Int> {
+    return numbers
+        .map { if (it % TWO == 0) it / TWO else it * TWO }
+        .filter { it > THRESHOLD }
 }