C31232233133313221211113313331333133313331212111112111133222212321   >>    C3123223313331322121111331333133313331333121211111211113322221232   <<    C31232233133313221211113313331333133313331212111112111133222212323   >>      C31232233133313221211113313331333133313331212111112111133222212322   >>