diff --git a/main.py b/main.py
index 4693ad3..13ec753 100644
--- a/main.py
+++ b/main.py
@@ -1,2 +1,10 @@
-def add(a, b):
-    return a + b
+from random import choices
+from string import ascii_letters, digits
+
+
+def random_string(s: str, n: int) -> str:
+    return "".join(choices(s, k=n))
+
+
+if __name__ == "__main__":
+    print(random_string(ascii_letters + digits, 10))