-4 2
2 1
2 0.5
-4 2
2 1
2 0.5
-4 2
2 1
2 0.5
-4 2
2 1
21 2
0 1
0 1
0 2
-2 1
2 0.5
0 1
0 1
0 2
1 1
-1 0.5
0 1
0 1
0 2
-2 1
2 0.5
0 1
0 1
0 2
1 1
-1 0.5
0 1
0 1
0 2
-2 1
