diff --git a/Week04/decorators_ikranur_kara.py b/Week04/decorators_ikranur_kara.py
new file mode 100644
index 00000000..db830656
--- /dev/null
+++ b/Week04/decorators_ikranur_kara.py
@@ -0,0 +1,20 @@
+import time
+import sys
+
+def performance(fn):
+    def wrapper(*args, **kwargs):
+        start_time = time.time()
+        result = fn(*args, **kwargs)
+        end_time = time.time()
+        
+        performance.counter += 1
+        performance.total_time += (end_time - start_time)
+        performance.total_mem += sys.getsizeof(result)
+        
+        return result
+
+    return wrapper
+
+performance.counter = 0
+performance.total_time = 0.0
+performance.total_mem = 0.0