C11112331312111112111133133313331333132323213331333133313111323113311   >>    C1111233131211111211113313331333133313232321333133313331311132311331   <<    C11112331312111112111133133313331333132323213331333133313111323113313   >>      C11112331312111112111133133313331333132323213331333133313111323113312   >>