题解 | #字符串加密#

key,word = input(),input()
letters = "abcdefghijklmnopqrstuvwxyz"
#创建并填充新字母表
newletters = ""
for ch in key:
    if ch not in newletters:
        newletters += ch
for ch in letters:
    if ch not in newletters:
        newletters += ch

#开始对word加密
res = ''
for c in word:
    if 'A' <= c <= 'Z':
        ind = letters.index(c.lower())
        res += newletters[ind]
    elif 'a' <= c <= 'z':
        ind = letters.index(c)
        res += newletters[ind]
    else:
        res += c
print(res)