0 0 3 0 0 0 7 0 0
0 0 0 0 0 0 0 0 0
16 0 0 0 0 0 0 0 0
0 0 3 0 0 0 0 2 0
0 0 0 0 0 4 0 0 0
0 0 0 0 0 0 0 0 0
0 0 4 0 0 0 0 4 0
0 0 0 0 0 0 0 0 0
0 0 0 2 0 2 0 0 0
