using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        int choix;

        List<string> options = new List<string>() {

            "Saisir une", "Afficher sa", "Vider la", "Quitter"

        };

        do {

            int c = 0;

            foreach (string option in options) {

                Console.WriteLine((c != 4)? $"{c} - {option} la liste": "Quitter"); 

                c++;

            }

            choix = int.Parse(Console.ReadLine());

        } while (choix != 0);

        List<string> Courses = new List<string>();

    }

}