2  1 1  1 1  0  1  1 0  0  1 1
-1 1 -2 0 -1 1  0 -1 1  1 -1 0
0 -1 1  1 -1 -2 -1 1 0  0  1 -1
0  0 0 -1 1  1  1 -1 -1 0  0 0
0  0 0  0 0  0  -1 1 1 -1 -1 1
