C31231211113313121211113313331333133313331213331323223331311321   >>    C3123121111331312121111331333133313331333121333132322333131132   <<    C31231211113313121211113313331333133313331213331323223331311323   >>      C31231211113313121211113313331333133313331213331323223331311322   >>