C11112331312111112111133133313331333132323213331333133313132113311231   >>    C1111233131211111211113313331333133313232321333133313331313211331123   <<    C11112331312111112111133133313331333132323213331333133313132113311233   >>      C11112331312111112111133133313331333132323213331333133313132113311232   >>