8
-1 0 1
0 -1 1
1 0 1
0 1 1
-1 0 -1
0 -1 -1
1 0 -1
0 1 -1
8
0 1
1 2
2 3
3 0
4 5
5 6
6 7
7 4
0
65536
0 0 1
