1 2
-1 1
-2 0.5
2 1
-4 1
2 1
-2 0.5
0 2
2 1
-2 1
0 1
0 1
-1 1
1 0.5
4 2
1 2
-1 1
-2 0.5
2 1
-4 1
2 1
-2 0.5
0 2
2 1
-2 1
0 1
0 1
-1 1
1 0.5
0 2
7 2
-2 1
-1 0.5
-4 1
2 1
-3 1
1 0.5
0 2
2 1
-2 1
0 1
0 1
-1 1
1 1
