C11112331312111112111133133313331333133313331333133313331333132333223111   >>    C1111233131211111211113313331333133313331333133313331333133313233322311   <<    C11112331312111112111133133313331333133313331333133313331333132333223113   >>      C11112331312111112111133133313331333133313331333133313331333132333223112   >>