12 10

0	0	0	0	0	0	0	0	0	-1
-1	1	0	0	0	0	0	0	0	0
0	-1	0	0	1	0	0	0	0	0
0	-1	1	0	0	0	0	0	0	0
0	0	-1	1	0	0	0	0	0	0
0	0	0	-1	0	1	0	0	0	0
0	0	0	0	0	-1	1	0	0	0
0	0	0	0	0	0	-1	1	0	0
0	0	0	0	0	0	0	-1	1	0
0	0	0	0	0	0	0	0	-1	1
0	0	0	1	-1	0	0	0	0	0
1	0	0	0	0	0	0	0	0	0

0
0
0
0
0
0
0
0
0
0
0
1
