C3123121111113313121111331333133313223313121111121111331311331322333121   >>    C312312111111331312111133133313331322331312111112111133131133132233312   <<    C3123121111113313121111331333133313223313121111121111331311331322333123   >>      C3123121111113313121111331333133313223313121111121111331311331322333122   >>