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