C11112331312111112111133133313331333133313331333133313331211113313123232231   >>    C1111233131211111211113313331333133313331333133313331333121111331312323223   <<    C11112331312111112111133133313331333133313331333133313331211113313123232233   >>      C11112331312111112111133133313331333133313331333133313331211113313123232232   >>