魔法少女郭德纲

摘要： On the most perfect of all planets i1c5l various numeral systems are being used during programming contests. In the second division they use a superfa 阅读全文

摘要： Little X used to play a card game called "24 Game", but recently he has found it too easy. So he invented a new game. Initially you have a sequence of 阅读全文