diff --git a/python/add_list_to_set.py b/python/add_list_to_set.py
index fbbe96e..d775ecc 100644
--- a/python/add_list_to_set.py
+++ b/python/add_list_to_set.py
@@ -1,3 +1,9 @@
+"""
+Experimental code written by Mert Gör(hwpplayer1)
+GPLv3-or-later 
+"""
+
 mert = set('mert')
 gor = ['g','o','r']
-print(gor,mert)
+mert.update(gor)
+print(mert)