C31232233133313221211113313331333133313331212111112111133222313121   >>    C3123223313331322121111331333133313331333121211111211113322231312   <<    C31232233133313221211113313331333133313331212111112111133222313123   >>      C31232233133313221211113313331333133313331212111112111133222313122   >>