0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
12 1
-12 1
0 1
0 1
14 1
-14 1
0 1
0 1
16 1
-16 1
0 1
0 1
18 1
-18 1
0 1
0 1
