lines	time
1	0.304509
2	0.591313
3	0.846318
4	1.168459
5	1.356712
6	1.672268
7	1.880715
8	2.200319
9	2.408995
10	2.738984
11	2.986380
12	3.299253
13	3.526814
14	3.807624
15	4.104249
16	4.426295
17	4.650010
18	4.996568
19	5.220587
20	5.382725
21	5.751033
22	6.086105
23	6.293596
24	6.579124
25	6.844858
26	6.911710
27	7.169032
28	7.757062
29	7.919717
30	8.262994