diff --git a/diy4.py b/diy4.py
index b309233..9362881 100644
--- a/diy4.py
+++ b/diy4.py
@@ -12,8 +12,9 @@ for i in range(len(message)):
     c=random.choice(key)
     d=a+b+c
     key_message=key_message+d
-print(key_message)
-message1=list(key_message)
-message1.insert(random.randint(0,len(message1)),"￥%……&*$%_*^&%(%^")
-message2="".join(message1)
-print(message2)
\ No newline at end of file
+noise="￥%……&*$%_*^&%(%^"
+list_message = list(key_message)
+index = random.randint(0,len(key_message))
+message2 = list_message.insert(index,noise)
+message1 = "".join(list_message)
+print(message1)
\ No newline at end of file