class BadInt:
    def __init__(self, number):
        self.number = number

    def __add__(self, other):
        return self.number * other.number

    def __mul__(self, other):
        return self.number + other.number


if __name__ == '__main__':
    a = BadInt(5)
    b = BadInt(6)
    assert a + b == 30, 'Sum check'
    assert a * b == 11, 'Multiply check'
    print("Looks good")