diff --git a/app/main.py b/app/main.py
index 68287892..5a28c1f8 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,6 +1,32 @@
-from typing import Callable
+from functools import wraps
+from typing import Callable, Any
 
 
-def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+def cache(func: Callable[..., Any]) -> Callable[..., Any]:
+
+    cache_storage = {}
+
+    @wraps(func)
+    def wrapper(*args: Any) -> Any:
+        cache_key = (func.__name__, args)
+
+        if cache_key in cache_storage:
+            print("Getting from cache")
+            return cache_storage[cache_key]
+        else:
+            print("Calculating new result")
+            result = func(*args)
+            cache_storage[cache_key] = result
+            return result
+
+    return wrapper
+
+
+@cache
+def long_time_func(base: int, exponent: int, modulus: int) -> int:
+    return (base ** exponent) % (base * modulus)
+
+
+@cache
+def long_time_func_2(n_tuple: tuple, power: int) -> list:
+    return [number ** power for number in n_tuple]