using System;

public class Program

{

    public static void Main()

    {

        //Console.WriteLine("Hello World");

        var person=Person.Parse("John");

        //person.Name="John";

        person.Introduce("Mosh");

    }

}

public class Person

{

    public string Name;

    public void Introduce(string str)

    {

        Console.WriteLine("Hi {0}, I am {1}",str,Name);

    }

    public static Person Parse(string str)

    {

        var person=new Person();

        person.Name=str;

        return person;

    }

}

​