using System;

public class person

{

    public string name;

    public string age;

}

public class Program

{  void change(ref person p){ 

Console.WriteLine(p.name);

    }

    public static void Main()

    { person p = new person();

      p.name = "asna";

      p.age= "10";

     change(ref p);

        Console.WriteLine("Hello World");

    }

}