diff --git a/t13_mean2.py b/t13_mean2.py
index 99f281b..d76061b 100644
--- a/t13_mean2.py
+++ b/t13_mean2.py
@@ -4,9 +4,4 @@
 
 known_numbers = [34, 23, 65, 91]
 
-total = mean * 5
-
-for num in known_numbers:
-  total -= num
-
-print(total)
+print(mean*(len(known_numbers)+1) - sum(known_numbers)