C11112331312111112111133133313331333132323213331333131233131231211   >>    C1111233131211111211113313331333133313232321333133313123313123121   <<    C11112331312111112111133133313331333132323213331333131233131231213   >>      C11112331312111112111133133313331333132323213331333131233131231212   >>