8
0 0 1 1 -2 0 0
2 1 0 1 -2 0 0
1 -1 1 0 0 1 0
1 0 1 0 0 1 0
1 -1 1 2 1 0 0
1 0 1 2 1 0 0
1 1 0 2 1 0 0
0 0 1 1 1 0 0
0

6 8 4

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

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