class Cat:
    def __init__(self, name: str, age: int):
        self.name: str = name
        self.age: int = age

    def say_meow(self) -> None:
        print('%s(%s): meow' % (self.name, self.age))


def main():
    cat = Cat('yupix', 0)
    cat.say_meow()


if __name__ == '__main__':
    main()