using System;

using System.Diagnostics.Contracts;

abstract class Book

{

    public abstract string Title { get; }

    public abstract string Author { get; }

    public abstract void DisplayDetails();

}

class FictionBook : Book

{

    public override string Title => "Fiction Book";

    public override string Author => "Fiction Author";

    public override void DisplayDetails()

    {

        Console.WriteLine("Hello");

    }

}

class NonFictionBook : Book

{

    public override string Title => "Non-Fiction Book";

    public override string Author => "Non-Fiction Author";

    public override void DisplayDetails()

    {

        Console.WriteLine("Hi");

    }

}

public class Program

{

    public static void Main(string[] args)

    {

        Console.WriteLine("   ~ Fiction Books ~");

        Console.WriteLine("----------------------------------------");

        string[ ,  ] FicBook = { { "Title:    ", "Author:   " }, { "Metamorphosis", "Franz Kafka" }, { "Pride and Prejudice", "Jane Austen" }, { "The Science of Story Telling", "Will Storr" } };

        for (int t = 0; t < FicBook.GetLength(0); t++)

        {

            for (int a = 0; a < FicBook.Length; a++)

            {

                Console.Write($"Title: {FicBook [);

            }

            Console.WriteLine("~ Non-Fiction Books ~");

            Console.WriteLine("----------------------------------------");

            string[,] tiThor = { { "Title:    ", "Author:   " }, { "Metamorphosis", "Franz Kafka" }, { "Pride and Prejudice", "Jane Austen" }, { "The Science of Story Telling", "Will Storr" } };

            for (int a = 0; a < tiThor.Length; a++)

            {

                for (int b = 0; b < tiThor.GetLength(0); b++)

                {

                    Console.Write(tiThor[a, b] + "         ");

                }

                Console.WriteLine();

        }

            Console.WriteLine();

        }

    }

}