题解 | 字符串加密

import sys
import string
a= input()
b = input()
ad = set()
na = ""
for _ in a:
    if _ not in ad:
        ad.add(_)
        na+=_
all_s = string.ascii_lowercase
for _ in all_s:
    if _ not in ad:
        na+=_
ma = {}
for i in range(len(all_s)):
    ma[all_s[i]]=na[i]
res=""
for _ in b:
    res+=ma[_]
print(res)

python的string.ascii_lowercase 挺好用的