using System;
using System.Collections.Generic;
using System.Drawing;
using System.Reflection;
using System.Security.Cryptography.X509Certificates;

internal class Program
{
static void Main(string[] args)
{
const string CommandExit = "Exit";
const string CommandShowAllBooks = "1";
const string CommandAddBook = "2";
const string CommandRemoveBook = "3";
const string CommandSearchBook = "4";

bool isRun = true;

Library library = new Library();

while (isRun)
{
Console.Clear();
Console.WriteLine($"{CommandShowAllBooks} - Показать все книги." +
$"\n{CommandAddBook} - Добавить книгу." +
$"\n{CommandRemoveBook} - Убрать книгу." +
$"\n{CommandSearchBook} - Найти книгу." +
$"\n{CommandExit} - Завершить программу.");

switch (Console.ReadLine())
{
case CommandShowAllBooks:
library.ShowAllBooks();
break;

case CommandAddBook:
library.AddBook();
break;

case CommandRemoveBook:
library.RemoveBook();
break;

case CommandSearchBook:
library.SearchBook();
break;

case CommandExit:
isRun = false;
break;

default:
Console.WriteLine("Ошибка ввода.");
break;
}
}

Console.WriteLine("Программа завершена.");
Console.ReadKey();
}
}

class Book
{
public Book(string name, string releaseDate, string author)
{
Name = name;
ReleaseDate = releaseDate;
Author = author;
}

public string Name { get; private set; }
public string ReleaseDate { get; private set; }
public string Author { get; private set; }

public void ShowInfo()
{
Console.WriteLine($"Книга: {Name}. Автор: {Author}. Год издания: {ReleaseDate}.");
}
}

class Library
{
private List<Book> _books = new List<Book>();

public Library()
{
_books.Add(new Book("", "", ""));
_books.Add(new Book("", "", ""));
_books.Add(new Book("", "", ""));
_books.Add(new Book("", "", ""));
_books.Add(new Book("", "", ""));
}

public void ShowAllBooks()
{

}

public void AddBook()
{

}

public void RemoveBook()
{

}

public void SearchBook()
{

}
}