C31231211113313121211113313331333133313331213331311331322322121   >>    C3123121111331312121111331333133313331333121333131133132232212   <<    C31231211113313121211113313331333133313331213331311331322322123   >>      C31231211113313121211113313331333133313331213331311331322322122   >>