using System;               

public class Commande

{

    public String FirstName;

    public String LastName; 

    public int NumC;

    public Commande(String FirstName, String LastName, int NumC)

    {

        this.FirstName = FirstName;

        this.LastName = LastName;

        this.NumC = NumC;

    }

    public static void Main()

    {

        Commande Cm1 = new Commande("Jean","Test", 10);

        Console.WriteLine("La commande "+ Cm1.NumC +" de "+ Cm1.FirstName+ " " + Cm1.LastName);

    }

}