diff --git a/Week04/Week04/decorators_oleksii_rak.py b/Week04/Week04/decorators_oleksii_rak.py
new file mode 100644
index 00000000..d932c973
--- /dev/null
+++ b/Week04/Week04/decorators_oleksii_rak.py
@@ -0,0 +1,28 @@
+import time
+import tracemalloc
+from functools import wraps
+
+def performance(func):
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        wrapper.counter += 1
+        
+        tracemalloc.start()
+        start_time = time.perf_counter()
+        
+        result = func(*args, **kwargs)
+        
+        end_time = time.perf_counter()
+        _, peak_mem = tracemalloc.get_traced_memory()
+        tracemalloc.stop()
+
+        wrapper.total_time += (end_time - start_time)
+        wrapper.total_mem += peak_mem
+        
+        return result
+
+    wrapper.counter = 0
+    wrapper.total_time = 0.0
+    wrapper.total_mem = 0
+    
+    return wrapper
diff --git a/Week06/timer_oleksii_rak.py b/Week06/timer_oleksii_rak.py
new file mode 100644
index 00000000..7bfa47e6
--- /dev/null
+++ b/Week06/timer_oleksii_rak.py
@@ -0,0 +1,13 @@
+from time import perf_counter
+
+class Timer:
+    def __init__(self):
+        self.start_time = 0.0
+        self.end_time = 0.0
+
+    def __enter__(self):
+        self.start_time = perf_counter()
+        return self
+      
+    def __exit__(self, *args):
+        self.end_time = perf_counter()
diff --git a/awaitme_oleksii_rak.py b/awaitme_oleksii_rak.py
new file mode 100644
index 00000000..2c939ea9
--- /dev/null
+++ b/awaitme_oleksii_rak.py
@@ -0,0 +1,13 @@
+import inspect
+from functools import wraps
+
+def awaitme(func):
+
+    @wraps(func)
+    async def wrapper(*args, **kwargs):
+        result = func(*args, **kwargs)
+        if inspect.isawaitable(result):
+            return await result
+        return result
+
+    return wrapper