2000
0, 3927, 3919, 0, 0, 0.0, 0.0
1, 3927, 3915, 0, 0, 0.0, 0.0
2, 3927, 3917, 0, 0, 0.0, 0.0
3, 3927, 3912, 0, 0, 0.0, 0.0