diff --git a/Week04/decorators_abdulsamet_kucuk.py b/Week04/decorators_abdulsamet_kucuk.py
new file mode 100644
index 00000000..3940b67c
--- /dev/null
+++ b/Week04/decorators_abdulsamet_kucuk.py
@@ -0,0 +1,25 @@
+import time
+import tracemalloc
+
+def performance(func):
+    def wrapper(*args, **kwargs):
+        performance.counter += 1
+
+        tracemalloc.start()
+        start_time = time.perf_counter()
+
+        result = func(*args, **kwargs)
+
+        end_time = time.perf_counter()
+        current_mem, peak_mem = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        performance.total_time += (end_time - start_time)
+        performance.total_mem += peak_mem
+
+        return result
+    return wrapper
+
+performance.counter = 0
+performance.total_time = 0.0
+performance.total_mem = 0