diff --git a/app/main.py b/app/main.py
index 68287892..72d42cb1 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,6 +1,36 @@
-from typing import Callable
+from typing import Callable, Any, Hashable
+from functools import wraps
 
 
 def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+    cache_dict = {}
+    @wraps(func)
+
+    def inner(*args: Hashable, **kwargs: Hashable) -> Any:
+        cache_key = (args, tuple(kwargs.items()))
+        if cache_key in cache_dict:
+            print("Getting from cache")
+            return cache_dict[cache_key]
+        print("Calculating new result")
+        result = func(*args, **kwargs)
+        cache_dict[cache_key] = result
+        return result
+    return inner
+
+
+@cache
+def long_time_func(a: int, b: int, c: int) -> int:
+    return (a ** b ** c) % (a * c)
+
+
+@cache
+def long_time_func_2(n_tuple: tuple, power: int) -> int:
+    return [number ** power for number in n_tuple]
+
+
+long_time_func(1, 2, 3)
+long_time_func(2, 2, 3)
+long_time_func_2((5, 6, 7), 5)
+long_time_func(1, 2, 3)
+long_time_func_2((5, 6, 7), 10)
+long_time_func_2((5, 6, 7), 10)