using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        CultureInfo culture = new CultureInfo("it-it");

        Console.WriteLine(culture.DisplayName);

        Decimal t;

        t = Decimal.Parse("2,05", culture.NumberFormat);

        Console.WriteLine(t);

        Console.WriteLine(t-2);

    }

}