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