About extremum problems results of 10,000
13:06
11:00
11:54
12:11
13:56
10:48
12:38
13:30
13:11
12:56
11:59
19:22
12:22
12:10
10:27
12:15
30:21
13:20
12:31
10:22
11:53
12:49
11:49
11:47
12:16
13:19
12:55
12:19
09:53
13:44
10:08
10:01
12:46
11:37
18:47
12:35
12:49
13:01
13:07
24:14
16:29
09:55
09:44
11:17
10:55
13:06