using System;

​

namespace MochilaGRP

{

 public class Lapiceros

 {

    public static void Main()

    {

        Console.WriteLine("");

    }

 }

  public class cuadernos

  {

    public static void Main()

    {

    }

 }

  public class borradores

  {

    public static void Main()

    {

    }

 }

}   

​