def main():
    A, B = [int(i) for i in input().split()]
    for i in range(A, B + 1):
        if i % 3 == 0 or has_three(i):
            print(i)

def has_three(value):
    if str(value).count("3") > 0:
        return True
    else:
        return False


if __name__ == '__main__':
    main()