import collections


class FrenchDeck(collections.MutableSequence):
    def insert(self, position, value):
        pass

    def __len__(self):
        pass

    def __getitem__(self, item):
        pass

    def __setitem__(self, key, value):
        pass

    def __delitem__(self, key):
        pass


if __name__ == "__name__":
    print(FrenchDeck())
