C11112331312111112111133133313331333133313331333133313331333132333211221   >>    C1111233131211111211113313331333133313331333133313331333133313233321122   <<    C11112331312111112111133133313331333133313331333133313331333132333211223   >>      C11112331312111112111133133313331333133313331333133313331333132333211222   >>