using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Foo foo = new Foo();

        Console.WriteLine(foo.boo.moo);

    }

    public class Foo

    {

        public Boo boo {get;set;}

    }

    public class Boo

    {

        public string moo {get;set;}

        public Boo () {

            moo = "moo";

        }

    }

}