 0  3  0  2  5  0  0 16  0  0  1  5
 7  5  3  3  1  0  0  0 16  0  5  6
 5  4  6 11  7  0 15  0  0 16  0  3
 4  4  7  0  3 16  1  0  0  0 10  2
