9 9
2.7145555 -1.5168651
2.5013921 -1.39569
3.0311139 -1.6827598
2.7610707 -1.5269606
2.7745042 -1.5207595
2.8049774 -1.4492451
4.2982483 -2.210517
2.8477705 -1.6077808
2.3252072 -1.3108287
0   1
1   2
2   3
3   4
4   5
5   6
6   7
7   8
8   9
9  0