C3123121111113313121111331333132313331333131123313232233132313221211132311   >>    C312312111111331312111133133313231333133313112331323223313231322121113231   <<    C3123121111113313121111331333132313331333131123313232233132313221211132313   >>      C3123121111113313121111331333132313331333131123313232233132313221211132312   >>