C31231211113313121211113313331333133313331213331333133112213332233132313113121   >>    C3123121111331312121111331333133313331333121333133313311221333223313231311312   <<    C31231211113313121211113313331333133313331213331333133112213332233132313113123   >>      C31231211113313121211113313331333133313331213331333133112213332233132313113122   >>