C312312111133131212111133133313331333133312133313331333112112331333131333131221   >>    C31231211113313121211113313331333133313331213331333133311211233133313133313122   <<    C312312111133131212111133133313331333133312133313331333112112331333131333131223   >>      C312312111133131212111133133313331333133312133313331333112112331333131333131222   >>