0 5

-1

9 8
0 -2 -3 -5 1 0 0 -4
1 0 -1 0 0 2 0 3
1 0 0 -1 0 1 0 0
1 0 1 0 0 -1 0 0
1 0 0 3 0 -1 2 0
1 1 0 -1 0 0 0 5
1 1 0 0 0 0 0 0
1 -1 0 0 0 0 1 2
1 0 0 1 0 0 0 -1