1 3
-1 1
3 1
2 0.505263
-2 0.33101
2 2.92857
7 0.513089
-2 0.994792
-2 1
-3 1.01053
7 1.97917
-2 1
-2 1
-3 1
-2 0.494845
2 2
2 1.02105
1 0.247396
0 7.83673
0 1
