C31231211113313121211113313331333133313331213331333133313222331233131   >>    C3123121111331312121111331333133313331333121333133313331322233123313   <<    C31231211113313121211113313331333133313331213331333133313222331233133   >>      C31231211113313121211113313331333133313331213331333133313222331233132   >>