using System;

​

public class Program

{

  struct Book

  {

    public string title;

    public double price;

    public string author;

  }

​

  struct Coords

  {

    public int x;

    public int y;

​

    // constructor

    public Coords(int p1, int p2) {

      x = p1;

      y = p2;

    }

  }

​

  public static void Main()

  {

    Book myFavBook;

    myFavBook.title = "The Fellowship of the Rings";

    myFavBook.author = "J.R.R. Tolkien";

    myFavBook.price = 29.99;

​

    Coords point = new Coords(42, 69);

​

    Console.WriteLine(myFavBook.title); // outputs: "The Fellowship of the Ring"

    Console.WriteLine("x = {0}, y = {1}", point.x, point.y); // outputs: x = 42, y = 69

  }

}