from sys import stdin


def main():
    input = lambda: stdin.readline()[:-1]
    A = input()
    S = input()

    i2a = dict()
    for i, s in enumerate(A):
        i2a[str(i)] = s
    for s in S:
        if ord(s) < 58:
            print(i2a[s], end="")
        else:
            print(s, end="")
    print()


main()