while True:
    try:
        a = input().lower()
        original_code = input()
        a = list(dict.fromkeys(a))
        b = [chr(i) for i in range(ord('a'),ord('z')+1,1)]
        c = b.copy()
        for i in a:
            c.remove(i)
        code = a + c
        translate_code = []
        for j in original_code:
            translate_code.append(code[b.index(j)])
        print(''.join(translate_code))
    except:
        break