cum swapping
31:02
31:06
24:54
10:15
21:40
60:11
36:03
60:30
26:05
29:11
77:04
16:32
36:02
26:54
38:19
23:07
31:53
25:13
22:51
24:25
12:14
27:18
38:50
42:42
33:30
32:15
65:04
15:50
47:38
21:44
30:32
32:18
25:15
13:04
28:13
21:58
16:27
29:31
60:36
20:14
21:33
36:01
19:53
28:10
29:25
27:10
9:31
35:11