using System;

public class Program

{

    public static void Main()

    {

        int i =  5;

        while(i ==5){

        Console.Write("Y/N ");

        string selection = Console.ReadLine();

        switch (selection)

        {

            case "Y":

                Console.WriteLine("Вы нажали букву Y");

            break;

            case "N":

                Console.WriteLine("Enter new information");

            return;

            default:

                Console.WriteLine("Enter Y or N");

                break;

        }

        }

    }

}