C312312111133131212111133133313331333133312133313331333131322331311331   >>    C31231211113313121211113313331333133313331213331333133313132233131133   <<    C312312111133131212111133133313331333133312133313331333131322331311333   >>      C312312111133131212111133133313331333133312133313331333131322331311332   >>