2000
0, 7911, 7352, 0, 0, 0.0, 0.0
1, 7912, 7353, 0, 0, 0.0, 0.0
2, 7912, 7353, 0, 0, 0.0, 0.0
3, 7911, 7352, 52, 52, 0.657312602705, 0.707290533188