diff --git a/app/main.py b/app/main.py
index 68287892f..75e66928c 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,6 +1,15 @@
-from typing import Callable
+from typing import Callable, Any
 
 
 def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+    result = {}
+
+    def inner(*args) -> Any:
+        if args in result:
+            print("Getting from cache")
+            return result[args]
+        print("Calculating new result")
+        res = func(*args)
+        result[args] = res
+        return res
+    return inner