2000
0, 6831, 4739, 0, 0, 0.0, 0.0
1, 6831, 4739, 31, 31, 0.453813497292, 0.654146444398
2, 6831, 4739, 172, 172, 2.51793295272, 3.6294576915
3, 6831, 4739, 268, 268, 3.92329087981, 5.65520151931