0 1
0 1
0 1
0 1
0 1
0 1
0 1
-1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
-1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
-1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
1 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
-3 1
0 1
0 1
0 1
7 1
0 1
0 1
0 1
