C11112331312111112111133133313331333132323213331333133313112331313112113121   >>    C1111233131211111211113313331333133313232321333133313331311233131311211312   <<    C11112331312111112111133133313331333132323213331333133313112331313112113123   >>      C11112331312111112111133133313331333132323213331333133313112331313112113122   >>