C11112331312111112111133133313331333133313123313331322332323311   >>    C1111233131211111211113313331333133313331312331333132233232331   <<    C11112331312111112111133133313331333133313123313331322332323313   >>      C11112331312111112111133133313331333133313123313331322332323312   >>