C11112331312111112111133133313331333132323133313331333132333212321   >>    C1111233131211111211113313331333133313232313331333133313233321232   <<    C11112331312111112111133133313331333132323133313331333132333212323   >>      C11112331312111112111133133313331333132323133313331333132333212322   >>