C31231211113313121211113313331333133313331213331333131322233121   >>    C3123121111331312121111331333133313331333121333133313132223312   <<    C31231211113313121211113313331333133313331213331333131322233123   >>      C31231211113313121211113313331333133313331213331333131322233122   >>