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