def main():
    A = input()
    S = input()
    convert_dict = {}
    for idx, letter in enumerate(A):
        convert_dict[str(idx)] = letter

    converted = ""
    for letter in S:
        try:
            converted += convert_dict[letter]
        except KeyError:
            converted += letter
    print(converted)


if __name__ == "__main__":
    main()