3
1 2 0 0 -2 0 0 0 2 2
1 2 0 0 -2 0 0 0 -2 2
1 2 0 0 -2 0 0 0 2 2
0
2 2 2
-2 0 0
2 0 0
1 2 0 0 -2 0 0 0 2 2 2
1 2 0 0 -2 0 0 0 -2 2 1
