C312312111133131212111133133313331333133312133313331333133322131333132322131221   >>    C31231211113313121211113313331333133313331213331333133313332213133313232213122   <<    C312312111133131212111133133313331333133312133313331333133322131333132322131223   >>      C312312111133131212111133133313331333133312133313331333133322131333132322131222   >>