C312312111133131212111133133313331333133112113313331333133313221313331   >>    C31231211113313121211113313331333133313311211331333133313331322131333   <<    C312312111133131212111133133313331333133112113313331333133313221313333   >>      C312312111133131212111133133313331333133112113313331333133313221313332   >>