def sn2numZ3(scenario: list) -> str:
    """
    Convert scenario number to str (zero padding of 3)

    Parameters
    ----------
        scenario: list
            use only index 0
            0: number, 1: items (order and recipe), 2:judge
    Returns
    ----------
        str
            str of scenario number (zero padding of 3)
    """
    # return result
    return str(scenario[0]).zfill(3)