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