2000
0, 7881, 6647, 0, 0, 0.0, 0.0
1, 7881, 6647, 1, 1, 0.0126887450831, 0.0150443809237
2, 7881, 6647, 0, 0, 0.0, 0.0
3, 7881, 6647, 52, 52, 0.659814744322, 0.782307808034