C31232233133313221211113313331333133313331212111133133312133222321   >>    C3123223313331322121111331333133313331333121211113313331213322232   <<    C31232233133313221211113313331333133313331212111133133312133222323   >>      C31232233133313221211113313331333133313331212111133133312133222322   >>