C312312111133131212111133133313331333133312133313331331122133322331323121   >>    C31231211113313121211113313331333133313331213331333133112213332233132312   <<    C312312111133131212111133133313331333133312133313331331122133322331323123   >>      C312312111133131212111133133313331333133312133313331331122133322331323122   >>