using System;

public class Book

{

    String ISBN;

    String BookName;

    int YearPublished;

    double Price;

    Aurthor AurthorDetails;

    Book(String ISBN, String BookName, int YearPublished, double Price, Aurthor AurthorDetails){

        this.ISBN = ISBN;

        this.BookName = BookName;

        this.YearPublished = YearPublished;

        this.Price = Price;

        this.AurthorDetails = AurthorDetails;

    }

    public void DisplayBookDetails(){

        Console.WriteLine(" Book Name = " + BookName + "\n Aurthor Name = " +  AurthorDetails.AurthorName + " email - " + AurthorDetails.AurhtorEmail + "\n ISBN no = " + ISBN + "\n Year Published = " + YearPublished + "\n Price = " + Price);

    }

}