import random

# 私钥
key = "abcdefgh使用编程实现位移替换加密，制作密码机关真是太好玩了哈哈！"
# 要加密语句
message = "诺依，周末一起去看动漫展吧！"
key_message="" 
jb='你就是歌姬吧'
# 请使用私钥key，对message进行加密
for i in message:
    str1 = i
    str2 = random.choice(key)
    str3 = random.choice(key)
    text = str1+str2+str3    
    key_message = key_message + text
list_message = list(key_message)
index =  random.randint(0,len(key_message))
list_message.insert(index, jb)
result_message = ''.join(list_message)    
print(result_message)