C31231211113313121211113313331333133313331213331333133313311121   >>    C3123121111331312121111331333133313331333121333133313331331112   <<    C31231211113313121211113313331333133313331213331333133313311123   >>      C31231211113313121211113313331333133313331213331333133313311122   >>