C11112331312111112111133133313331333132323213311211111333131111121   >>    C1111233131211111211113313331333133313232321331121111133313111112   <<    C11112331312111112111133133313331333132323213311211111333131111123   >>      C11112331312111112111133133313331333132323213311211111333131111122   >>