C31231211111133131211113313331323133313113313223133313331333132232231   >>    C3123121111113313121111331333132313331311331322313331333133313223223   <<    C31231211111133131211113313331323133313113313223133313331333132232233   >>      C31231211111133131211113313331323133313113313223133313331333132232232   >>