C31232233133313221211113313331333133313331212111112111113332331211   >>    C3123223313331322121111331333133313331333121211111211111333233121   <<    C31232233133313221211113313331333133313331212111112111113332331213   >>      C31232233133313221211113313331333133313331212111112111113332331212   >>