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