using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        var number = 1234567.98M;

        var format = "N";

        var roCulture = new CultureInfo("ro-RO");

        var huCulture = new CultureInfo("hu-HU");

        var usCulture = new CultureInfo("en-US");

        var iranCulture = new CultureInfo("fa-Ir");

        Console.WriteLine($"{number.ToString(format, roCulture)}");

        Console.WriteLine($"{number.ToString(format, huCulture)}");

        Console.WriteLine($"{number.ToString(format, usCulture)}");

        Console.WriteLine($"{number.ToString(format, iranCulture)}");

    }

}