C11112331312111112111133133313331333132323133313331333133313113211112211211211   >>    C1111233131211111211113313331333133313232313331333133313331311321111221121121   <<    C11112331312111112111133133313331333132323133313331333133313113211112211211213   >>      C11112331312111112111133133313331333132323133313331333133313113211112211211212   >>