C31231211113313121211113313331333133313331213331333133311331323311321   >>    C3123121111331312121111331333133313331333121333133313331133132331132   <<    C31231211113313121211113313331333133313331213331333133311331323311323   >>      C31231211113313121211113313331333133313331213331333133311331323311322   >>