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