C31232233133313221211113313331333133313331212111112111112122331   >>    C3123223313331322121111331333133313331333121211111211111212233   <<    C31232233133313221211113313331333133313331212111112111112122333   >>      C31232233133313221211113313331333133313331212111112111112122332   >>