1 0 0 0 5 0 0 9 3
0 0 0 9 1 2 0 0 0
0 0 0 6 0 4 0 0 0
8 6 0 0 0 0 0 0 0
0 0 0 0 6 0 0 0 7
0 0 0 0 0 0 0 0 0
0 0 0 0 4 0 7 0 2
4 2 0 3 8 0 0 0 9
0 0 0 0 0 9 0 3 4