C31232233133313221211113313331333133313331212111112111113311331   >>    C3123223313331322121111331333133313331333121211111211111331133   <<    C31232233133313221211113313331333133313331212111112111113311333   >>      C31232233133313221211113313331333133313331212111112111113311332   >>