using System;

​

public class Program

{

    public static void Main(string[] args)

    {

        Console.WriteLine("{0}, {1}, {2}, {3}, {4}, {5}, {6}",

              DayOfWeek.Monday,

              DayOfWeek.Tuesday,

              DayOfWeek.Wednesday,

              DayOfWeek.Thursday,

              DayOfWeek.Friday,

              DayOfWeek.Saturday,

              DayOfWeek.Sunday);

    }

}