C312312111133131212111133133313231333133313331333133112331311331313221   >>    C31231211113313121211113313331323133313331333133313311233131133131322   <<    C312312111133131212111133133313231333133313331333133112331311331313223   >>      C312312111133131212111133133313231333133313331333133112331311331313222   >>