using System;

​

public class Adder

{

  public Adder()

  {

  }

  public Adder(int x, int y)

  {

    this.x = x;

    this.y = y;

  }

  public int Add()

  {

    z = x + y;

    return z;

  }

  public int x { get;set; }

  public int y { get;set; }

  public int z { get;set; }

}

public class Program

{

    public static void Main()

    {

        Adder foo = new Adder();

        int x = 0, y = 0;

        Console.WriteLine("Enter x and y");

        foo.x = Convert.ToInt32(Console.ReadLine());

        foo.y = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("You entered: x: {0}, y: {1}",foo.x,foo.y);

        foo.Add();

        Console.WriteLine("Add result: {0}", foo.z);

    }

}