16
2
4
4
0 0 1 -1
1 0 1 -1
2 0 1 -1
3 0 1 -1
4 0 1 -1
5 0 1 -1
6 0 1 -1
7 0 1 -1
8 0 1 -1
9 0 1 -1
10 0 1 -1
11 0 1 -1
12 0 1 -1
13 0 1 -1
14 0 1 -1
15 0 1 -1
2 1 5 9 13 -1
2 2 10 14 -1
2 3 7 11 15 -1
2 4 8 12 16 -1
2 1 2 3 4 -1
2 5 6 7 8 -1
2 9 10 11 12 -1
2 13 14 15 16 -1
2 1 6 11 16 -1
2 2 7 12 -1
2 3 8 -1
2 5 10 15 -1
2 2 5 -1
2 9 6 3 -1
2 13 10 7 4 -1
2 14 11 8 -1
2 15 12 -1
2 9 14 -1
-2