using System;

public class Program

{

    public static void Main()

    {

        // ask for a string from the user

        Console.WriteLine("Enter a string");

        string choice = Console.ReadLine();

        // handle the different cases

        switch(choice) 

        { 

            case "Y" : 

            Console.WriteLine("Yes"); 

            break; 

            case "M" : 

            Console.WriteLine("Maybe");

            break; 

            case "N" : 

            Console.WriteLine("No"); 

            break; 

            default: 

            Console.WriteLine("Invalid response");

            break;

        }

    }

}