class IncorrectVinNumber(Exception):
    def __init__(self, message='Некорректный тип vin номер'):
        self.message = message
        super().__init__(self.message)

def check_vin_number(vin):
    if not isinstance(vin, int):
        raise IncorrectVinNumber()

# Пример использования
try:
    vin_number = 'ABC123'
    check_vin_number(vin_number)
except IncorrectVinNumber as e:
    print(e.message)