C11112331312111112111133133313331333132323213331333133313333211133322231   >>    C1111233131211111211113313331333133313232321333133313331333321113332223   <<    C11112331312111112111133133313331333132323213331333133313333211133322233   >>      C11112331312111112111133133313331333132323213331333133313333211133322232   >>