4    //0ͨ//1//2//3//4//5//6//7츲//8ƴ//9׾//10ӥХ
4 -1  1  1  1  	1
4 -1  1  1  1 	1
4 -1  1  1  1 	1
4 -1  1  1  1 	1
4 -1  1  1  1 	1


