2000
0, 1848, 1848, 0, 0, 0.0, 0.0
1, 1847, 1847, 0, 0, 0.0, 0.0
2, 1848, 1848, 0, 0, 0.0, 0.0
3, 1848, 1848, 0, 0, 0.0, 0.0