Time    Number      Number  Other clock time
10:00   1       1   10:01
11:00   2       2   11:01
12:00   3       4   13:01
13:00   4       5   14:01
14:00   5       2   16:01
15:00   1       4   18:01
16:00   2       5   19:02
17:00   3       1   20:00
18:00   4       2   21:01
19:00   5
20:00   1
21:00   2