C11112331312111112111133133313331333133313331333133313331333133323213123131   >>    C1111233131211111211113313331333133313331333133313331333133313332321312313   <<    C11112331312111112111133133313331333133313331333133313331333133323213123133   >>      C11112331312111112111133133313331333133313331333133313331333133323213123132   >>