C312312111133131212111133133313331333133312133313113313331312322132233131   >>    C31231211113313121211113313331333133313331213331311331333131232213223313   <<    C312312111133131212111133133313331333133312133313113313331312322132233133   >>      C312312111133131212111133133313331333133312133313113313331312322132233132   >>