C11112331312111112111133133313331333132323213311211111133132321123121   >>    C1111233131211111211113313331333133313232321331121111113313232112312   <<    C11112331312111112111133133313331333132323213311211111133132321123123   >>      C11112331312111112111133133313331333132323213311211111133132321123122   >>