3 1
-7 1
-1 1
7 1
1 1
-7 1
-1 1
7 1
1 1
-1 1
1 1
-1 1
1 1
-1 1
-2 1
2 1
1 1
-1 1
1 1
-1 1
1 1
-1 1
1 1
-1 1
-2 2
-4 1
6 0.5
1 1
-1 1
-2 1
2 1
-2 1
2 1
1 1
-1 1
1 1
2 1
