C111123313331323113313331323133313331311331311331333133112111112313221   >>    C11112331333132311331333132313331333131133131133133313311211111231322   <<    C111123313331323113313331323133313331311331311331333133112111112313223   >>      C111123313331323113313331323133313331311331311331333133112111112313222   >>