0
23
-12 4 -12 -4
-12 -4 -8 -4
-8 -4 -8 -1
-8 -1 -9 0
-9 0 -8 1
-8 1 -8 4
-8 4 -12 4
-4 4 -4 -4
-4 -4 0 -4
0 -4 0 4
0 4 -4 4
4 4 4 -4
4 -4 8 -4
8 -4 8 4
8 4 4 4
-4 -8 -8 -8
-8 -8 -8 -12
-8 -12 -4 -12
-4 -12 -4 -16
-4 -16 -8 -16
0 -8 2 -8
2 -8 4 -8
2 -8 2 -16