C11112331312111112111133133313331333133313331333133313331333132323312233121   >>    C1111233131211111211113313331333133313331333133313331333133313232331223312   <<    C11112331312111112111133133313331333133313331333133313331333132323312233123   >>      C11112331312111112111133133313331333133313331333133313331333132323312233122   >>