0 0 0 4 0 0 0 0 0
5 0 0 0 0 0 0 0 2
0 0 0 2 5 0 0 0 0
0 0 0 0 0 0 4 0 0
0 0 0 0 0 0 0 0 0
4 0 0 0 0 0 0 3 0
0 0 0 4 0 0 0 0 3
0 0 0 0 0 0 5 0 0
0 0 0 0 0 0 0 0 0
