C31231211113311331323133313331333133313331333133313331311331333131131221   >>    C3123121111331133132313331333133313331333133313331333131133133313113122   <<    C31231211113311331323133313331333133313331333133313331311331333131131223   >>      C31231211113311331323133313331333133313331333133313331311331333131131222   >>