C31231211113313121211113313331333133313331213331333133312111112112331323221   >>    C3123121111331312121111331333133313331333121333133313331211111211233132322   <<    C31231211113313121211113313331333133313331213331333133312111112112331323223   >>      C31231211113313121211113313331333133313331213331333133312111112112331323222   >>