C11112331312111112111133133313331333132323133313331333133313113321123221311   >>    C1111233131211111211113313331333133313232313331333133313331311332112322131   <<    C11112331312111112111133133313331333132323133313331333133313113321123221313   >>      C11112331312111112111133133313331333132323133313331333133313113321123221312   >>