2000
0, 7631, 6311, 0, 0, 0.0, 0.0
1, 7631, 6311, 0, 0, 0.0, 0.0
2, 7631, 6311, 0, 0, 0.0, 0.0
3, 7631, 6311, 51, 51, 0.668326562705, 0.808112818888