// f1.cs: First part of the namespace Intro

using System;

namespace Intro{

  internal class A {

    public void MethA (){
      Console.WriteLine("This is MethA in class Intro.A");
    }
  }

  public class B {

    private A var = new A();

    public void MethB (){
      Console.WriteLine("This is MethB in class Intro.B");
      Console.WriteLine("{0}", var);
    }
  }

}