{filelink=17502}

using System;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Text;

class Club
{
    private string nom;

    public Club(string nom)
    {
        this.nom = nom;
    }

    public override string ToString()
    {
        return nom;
    }
}

class Demo {
    static void Main(string[] args)
    {
        Collection club = new Collection();
        club.Add(new Club("Chelsea"));
        club.Add(new Club("PSG"));
        club.Add(new Club("Lyon"));
        club.Add(new Club("Barcelone"));

        foreach (Club elem in club) {
            Console.WriteLine(elem);
        }
    }
}