#970. 取石子游戏
取石子游戏
说明
![](http://tk.hustoj.com:80/upload/image/20180220/20180220162059_92269.jpg)
样例
2
1 1
1
2 30
197943
249832
Preempt.
Leapfrog.
提示
2
1 1
1
2 30
197943
249832
Preempt.
Leapfrog.
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