import collections

Card = collections.namedtuple('Card', ['rank', 'suit'])

class FrenchDeck:
    ranks = [str(n) for n in range(2, 11)] + list('JQKA')
    suits = 'spades diamonds clubs hearts'.split()

    def __init__(self) -> None:
        self._cards = [Card(rank, suit) for suit in self.suits
                       for rank in self.ranks]

    def __len__(self):
        return len(self._cards)
    
    def __getitem__(self, position):
        return self._cards[position]


    def foo(self):
        print(self.ranks)
        print(self.suits)
        print(self._cards)

def main():
    cards = FrenchDeck()
    # cards.foo()
    print(len(cards))
    print(cards[0])
    

if __name__ == '__main__':
    main()