def main():
    a = str(input())
    s = str(input())

    dic = {}
    for i, ch in enumerate(a):
        dic[str(i)] = ch

    ans = ""
    for ch in s:
        if ch in dic:
            ans += dic[ch]
        else:
            ans += ch
    print(ans)


if __name__ == "__main__":
    main()