C31231211113313121211113313331333133313311211331333131333132232231   >>    C3123121111331312121111331333133313331331121133133313133313223223   <<    C31231211113313121211113313331333133313311211331333131333132232233   >>      C31231211113313121211113313331333133313311211331333131333132232232   >>