11 10

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

0
0
0
0
0
0
0
0
0
0
1
