C3123121111113313121111331333133313223313331333131333131133132212311   >>    C312312111111331312111133133313331322331333133313133313113313221231   <<    C3123121111113313121111331333133313223313331333131333131133132212313   >>      C3123121111113313121111331333133313223313331333131333131133132212312   >>