def join_int(fst, snd):
    """
    Join two independent ints together
    - 1, 2 -> 12
    - 12, 34 -> 1234

    :param fst:
        First number
    :param snd:
        Second number
    """
    assert fst >= 0
    assert snd >= 0
    buf = str(fst) + str(snd)
    return int(buf)