using System;

struct Books {
   private string title;
   private string author;
   private string subject;
   private int book_id;
   
   public void getValues(string t, string a, string s, int id) {
      title = t;
      author = a;
      subject = s;
      book_id = id;
   }
   
   public void display() {
      Console.WriteLine("Title : {0}", title);
      Console.WriteLine("Author : {0}", author);
      Console.WriteLine("Subject : {0}", subject);
      Console.WriteLine("Book_id :{0}", book_id);
   }
};  

public class testStructure {

   public static void Main(string[] args) {
      Books Book1 = new Books();   
      Books Book2 = new Books();   


      Book1.getValues("C Programming",
      "Nuha Ali", "C Programming Tutorial",6495407);

      
      Book2.getValues("Telecom Billing",
      "Zara Ali", "Telecom Billing Tutorial", 6495700);


      Book1.display();


      Book2.display(); 

      Console.ReadKey();
   }
}