using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Books
{
	class Book
	{
		public string author;
		public string publisher;
		public int yearPublished;
		public int isbn;

		public void ReturnBookValues()
		{
			Console.WriteLine("Book: " + author);
			Console.WriteLine("Published: " + publisher);
			Console.WriteLine("Year Of Publication: " + yearOfPublication);
			Console.WriteLine("ISBN: " + isbn);
		}
	}

	class Library : Book
	{
		
		public string nameOfLibrary;
		public string locationOfLibrary;

		public void ReturnLibraryValues()
		{
			Console.WriteLine("Name of Library: " + nameOfLibrary);
			Console.WriteLine("Location Of Library: " + locationOfLibrary);
		}
	}

	class Program
	{
		public static void Main(string[] args)
		{
			
			Book myBook = new Book();
			Library myLibrary = new Library();
			string selectionValue;

			Console.WriteLine("What is the name of the book you are reading?");
			myBook.author = Console.ReadLine();

			Console.WriteLine("What is the publisher of the book you are reading?");
			myBook.publisher = Console.ReadLine();

			Console.WriteLine("What is the year of publication of the book you are reading?");
			myBook.yearPublished = Convert.ToInt32(Console.ReadLine());
			Console.WriteLine("What is the ISBN number of the book you are reading?");
			myBook.isbn = Convert.ToInt32(Console.ReadLine());

			Console.WriteLine();

			Console.WriteLine("Are you borrowing this book from a library? (Enter YES or No)';
			selectionValue = Console.ReadLine();

			selectionValue.ToUpper();

			if (selectionValue == "YES")
			{
				Console.WriteLine("What is the name of the library you are borrowing the book from?");
				myLibrary.nameOfLibrary = Console.ReadLine();
				Console.WriteLine("What is the town or city where this library is located?");
				myLibrary.locationOfLibrary = Console.ReadLine();

			}

			myBook.ReturnBookValues();

			if (selectionValue == "YES")
			{
				myLibrary.ReturnLibraryValues();
			}

			Console.Write("Press Enter To TerminateÉ");
			Console.Read();

		}
	}
}