using System;

public class Program

{

    public static void Main()

    {

        int prix,quantite,montant,total=0;

        double remise=0;

        while(true){

            Console.Write("Donner le prix");

            prix=Convert.ToInt32(Console.ReadLine());

            if(prix==0)

                break;

            Console.Write("quantite");

            quantite=Convert.ToInt32(Console.ReadLine());

            montant= prix*quantite;

            total=total + montant;

            Console.WriteLine("Montant =" +montant);

            }

        remise=(total>5000) ? total * 0.1 : 0;

        Console.WriteLine("Remise =" +remise);

        Console.WriteLine("Total =" +(total-remise));

    }

​

    }

​