C11112331312111112111133133313331333132323213331313331311331323231332321   >>    C1111233131211111211113313331333133313232321333131333131133132323133232   <<    C11112331312111112111133133313331333132323213331313331311331323231332323   >>      C11112331312111112111133133313331333132323213331313331311331323231332322   >>