题解 | #字符串加密#

key = input().strip()
target = input().strip()
alphabet = [chr(x) for x in range(97, 123)]
keyalphabet = []
result = ''
for k in key:
    if k not in keyalphabet:
        keyalphabet.append(k)
for s in alphabet:
    if s not in keyalphabet:
        keyalphabet.append(s)
for t in target:
    result += keyalphabet[alphabet.index(t)]
print(result)