./i \
0 6 0 8 0 3 0 4 1 \
0 0 0 0 0 7 3 0 0 \
7 0 8 1 4 0 0 0 0 \
0 4 0 9 6 0 0 0 0 \
1 2 7 0 0 0 9 3 6 \
0 0 0 0	3 1 0 8 0 \
0 0 0 0 2 8 6 0 4 \
0 0 2 6 0 0 0 0 0 \
9 8 0 3 0 4 0 7 0 
    
