C111123313331323113313331323133313331311331311331333133112111133132231323331   >>    C11112331333132311331333132313331333131133131133133313311211113313223132333   <<    C111123313331323113313331323133313331311331311331333133112111133132231323333   >>      C111123313331323113313331323133313331311331311331333133112111133132231323332   >>