def main():
    a, b = input().rstrip().split(" ")
    a = int(a)
    b = int(b)

    def has_three(strings):
        for j in strings:
            if "3" in j:
                return True
        return False

    for i in range(a, b + 1):
        if i % 3 == 0:
            print(i)
        elif has_three(str(i)):
            print(i)


if __name__ == "__main__":
    main()