C11112331312111112111133133313331333132323213331313331312311331   >>    C1111233131211111211113313331333133313232321333131333131231133   <<    C11112331312111112111133133313331333132323213331313331312311333   >>      C11112331312111112111133133313331333132323213331313331312311332   >>