A | 10:57 +1a, b 11:57 -1b, a 12:57 +3a, b |
11:00 +1a, b 12:00 -1b, a 13:00 +3a, b | |
11:02 -1a, b 12:02 -1b, a 13:02 +1a, b | |
11:05 +1a, b 12:05 -1b, a 13:05 +2a, b | |
11:12 a, b 12:12 b, a 13:12 a, b | |
11:14 a, b 12:14 b, a 13:14 a, b | |
11:16 -6a, b 12:16 -6b, a 13:16 -5a, b | |
B | 11:19 a, b 12:19 b, a 13:19 a, b |