using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        int i = 1000000000;

      // Creates a CultureInfo for English in Belize.

      CultureInfo bz = new CultureInfo("en-AT");

      // Displays i formatted as currency for the bz.

      Console.WriteLine(i.ToString("N", bz));

    }

}