using System;

namespace LowCohesionDemo

{

    abstract class Report {

        public int Pages {get; set;}    

        public string Text {get; set;}

        public abstract void Save(string fileName);

        public abstract void Load(string fileName);

    }

    abstract class Printer {

        public abstract void Print(Report report);

    }

    abstract class Reader {

        public abstract void Read(Report report);

    }

}