C11112331312111112111133133313331333132323213331333133313113221121   >>    C1111233131211111211113313331333133313232321333133313331311322112   <<    C11112331312111112111133133313331333132323213331333133313113221123   >>      C11112331312111112111133133313331333132323213331333133313113221122   >>