2000
0, 7561, 6546, 0, 0, 0.0, 0.0
1, 7561, 6546, 21, 21, 0.277741039545, 0.32080659945
2, 7561, 6546, 0, 0, 0.0, 0.0
3, 7561, 6547, 19, 19, 0.251289511969, 0.290209256148