diff --git a/12-09/task4_rpo256.py b/12-09/task4_rpo256.py
index ec5b99e..4e4ebf1 100644
--- a/12-09/task4_rpo256.py
+++ b/12-09/task4_rpo256.py
@@ -1,5 +1,3 @@
-import sys as os
-
 def get_percent(number):
     if 0 <= number < 500:
         return 3