def num_conv(number, plural=False):
    """Converts card numbers into their proper names

    Args:
        number (int): The number intended to be converted
        plural (bool): Determines if the result should be in plural or single form

    Returns:
        The proper name to be used for the card number

    """
    if plural:
        plural_s = "s"
    else:
        plural_s = ""

    if number == 1 or number == 14:
        number_string = f"Ace{plural_s}"
    elif number == 11:
        number_string = f"Jack{plural_s}"
    elif number == 12:
        number_string = f"Queen{plural_s}"
    elif number == 13:
        number_string = f"King{plural_s}"
    else:
        number_string = f"{str(number)}{plural_s}"
    return number_string