C31231211113313121211113313331333133313331213331311331311331333132213223321   >>    C3123121111331312121111331333133313331333121333131133131133133313221322332   <<    C31231211113313121211113313331333133313331213331311331311331333132213223323   >>      C31231211113313121211113313331333133313331213331311331311331333132213223322   >>