using System;

​

public class Program

{

    public static void Main()

    {

        Person firstPerson=new Person();

        firstPerson.name="Syamil";

        firstPerson.age=22;

        Console.WriteLine("First person age is {0} and name is {1}",firstPerson.name,firstPerson.age);

        Operations changeDetails=new Operations();

        changeDetails.Change(firstPerson);

        Console.WriteLine("New First person changed age is {0} and name is {1}",firstPerson.name,firstPerson.age);

    }

}

​

public class Person

{

    public string name;

    public int age;

}

​

public class Operations

{

    public void Change(Person P1)

    {

        P1.name="Aneesh";

        P1.age=30;

    }

}