diff --git a/Week03/decorators_ceyhun_binal.py b/Week03/decorators_ceyhun_binal.py
new file mode 100644
index 00000000..603ac34c
--- /dev/null
+++ b/Week03/decorators_ceyhun_binal.py
@@ -0,0 +1,45 @@
+import time
+
+counter = {} 
+total_times = {} 
+
+def performance(func):
+    def _performance(*args, **kwargs):
+        function_name = func.__name__
+
+        if function_name not in counter:
+            counter[function_name] = 0
+            total_times[function_name] = 0
+
+        counter[function_name] += 1
+        start_time = time.time()
+        result = func(*args, **kwargs)
+        end_time = time.time()
+        execution_time = end_time - start_time
+        total_times[function_name] += execution_time
+
+        return result
+
+    return _performance
+
+def print_function_summary():
+    for function_name in counter:
+        print(f"Function '{function_name}' took {total_times[function_name]:.6f} seconds.")
+        print(f"Total time for '{function_name}': {total_times[function_name]:.6f} seconds")
+        print(f"Function calls for '{function_name}': {counter[function_name]}")
+
+@performance
+def aggregate_function(arg1: int = 0, arg2: int = 0) -> int:
+    return arg1 + arg2
+
+@performance
+def multiple_function(arg1: float, arg2: float) -> float:
+    return arg1 * arg2
+
+if __name__ == "__main__":
+    aggregate_function(3, 4)
+    multiple_function(2, 5)
+    multiple_function(534.4, 748.7)
+    multiple_function(489.25, 745.62)
+    
+print_function_summary()