C31231211113313121211113313331333133313311211331333133313331322323231   >>    C3123121111331312121111331333133313331331121133133313331333132232323   <<    C31231211113313121211113313331333133313311211331333133313331322323233   >>      C31231211113313121211113313331333133313311211331333133313331322323232   >>