说明：  这是由一个游戏而编的一个程序 游戏的规则是这样的： N个人围成一圈，依次报数，叫到3的人，退出游戏，最后剩下的人就是最后的胜利者 这个游戏可以在很多的时候玩 公平对待很多人 小巧而高效的一个程序
(This is a game and a series of procedures the rules of the game is this : N personal cordons were reported few, then called three people out of the game, the last remaining person is the final winner of this game can be a lot of time to play fair treatment of many small and efficient a way sequence)