using System;

public class Program

{

    public static void Main()

    {

        var culture = new System.Globalization.CultureInfo("vi-VN");

        Console.WriteLine(culture.DateTimeFormat.GetDayName(DateTime.Now.DayOfWeek));

    }

    public static double Convert_To_Double(object p_objData)

        {

            if ((p_objData != System.DBNull.Value) && (Convert.ToString(p_objData) != ""))

                return Convert.ToDouble(p_objData);

            else

                return 0;

        }

}