C111123313331323113313331323133313331311331311331333133112111111331221   >>    C11112331333132311331333132313331333131133131133133313311211111133122   <<    C111123313331323113313331323133313331311331311331333133112111111331223   >>      C111123313331323113313331323133313331311331311331333133112111111331222   >>