./i \
2 6 0 0 9 0 0 0 0 \
8 0 0 0 4 2 0 9 3 \
0 0 4 8 0 0 7 0 0 \
0 0 2 0 7 9 0 8 1 \
0 0 6 4 0 8 2 0 0 \
1 3 0 5 2 0 4 0 0 \
0 0 7 0 0 1 8 0 0 \
5 8 0 2 6 0 0 0 7 \
0 0 0 0 8 0 0 5 2 
    
