C31231211113313121211113313331333133313331213331311331322332313221   >>    C3123121111331312121111331333133313331333121333131133132233231322   <<    C31231211113313121211113313331333133313331213331311331322332313223   >>      C31231211113313121211113313331333133313331213331311331322332313222   >>