题解 | #字符串加密#

while True:
    try:
        a = input()
        d = input()
        e = a.upper()
        f = d.upper()
        b = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
        c = ''
        res = ''
        for i in e:
            if i not in c:
                c = c + i
        for i in b:
            if i not in c:
                c = c + i
        for i in d:
            if i.islower():
                i = c[b.index(i.upper())]
                i = i.lower()
            else:
                i = c[b.index(i)]
            res = res + i
        print(res)
    except:
        break