C312312111133131212111133133313331333133312133313331313331323221   >>    C31231211113313121211113313331333133313331213331333131333132322   <<    C312312111133131212111133133313331333133312133313331313331323223   >>      C312312111133131212111133133313331333133312133313331313331323222   >>