C11112331312111112111133133313331333132323213331333133313112331323131231211   >>    C1111233131211111211113313331333133313232321333133313331311233132313123121   <<    C11112331312111112111133133313331333132323213331333133313112331323131231213   >>      C11112331312111112111133133313331333132323213331333133313112331323131231212   >>