diff --git a/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt b/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
index 20d40f2..2ea252c 100644
--- a/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
+++ b/src/main/kotlin/mate/academy/ProcessAndFilterNumbers.kt
@@ -1,5 +1,9 @@
 package mate.academy
 
-fun processAndFilterNumbers(numbers: List<Int>): List<Int> {
+private const val THRESHOLD = 25
 
+fun processAndFilterNumbers(numbers: List<Int>): List<Int> {
+    return numbers
+        .map { if (it % 2 == 0) it / 2 else it * 2 }
+        .filter { it > THRESHOLD }
 }