C3123121111121111131213331333133313331333133313332112323132333132322323311   >>    C312312111112111113121333133313331333133313331333211232313233313232232331   <<    C3123121111121111131213331333133313331333133313332112323132333132322323313   >>      C3123121111121111131213331333133313331333133313332112323132333132322323312   >>