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