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