## z:\Chao\src\ll1882_chopsticks\test\in.txt 
2020/04/24 周五 16:56:52.53 
5
-----------------------------------------------
Process exited after 150 ms with return value 0

## z:\Chao\src\ll1882_chopsticks\test\in2.txt 
2020/04/24 周五 16:56:52.53 
-1
-----------------------------------------------
Process exited after 80 ms with return value 0

## z:\Chao\src\ll1882_chopsticks\test\in3.txt 
2020/04/24 周五 16:56:52.53 
0
-----------------------------------------------
Process exited after 70 ms with return value 0