def main():
    A, B = map(int, input().split())
    if A >= 1000 and "3" in str(A)[:-3]:
        print("\n".join(map(str, range(A, B+1))))
        return

    for number in range(A, B + 1):
        if "3" in str(number):
            print(number)
        elif number % 3 == 0:
            print(number)


if __name__ == "__main__":
    main()