在一定条件下，我们证明随机对策有值函数，两个局中人相对于折扣报酬都有最优策略。

It is proved that under certain condition the stochastic game has a value and both players have optimal strategies for discounted rewards.

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你们两个都有足够聪明并且都有最优的策略，写一个方法去决定你是否能够赢得游戏。

Both of you are very clever and have optimal strategies for the game. Write a function to determine whether you can win the game given the number of stones in the heap.

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