C312312111133131212111133133313331333133312133313331333133322131333132211331   >>    C31231211113313121211113313331333133313331213331333133313332213133313221133   <<    C312312111133131212111133133313331333133312133313331333133322131333132211333   >>      C312312111133131212111133133313331333133312133313331333133322131333132211332   >>