6
0 0 2 0 0 1 0 0 0
0 0 0 0 0 0 0 0 12
0 0 0 0 2 0 1 1 0
3 1 1 1 0 0 0 0 0
3 0 0 0 0 0 3 0 2
0 0 0 0 0 0 0 1 0