using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Задача, в которой вводится номер дня недели и проверяется, является ли он выходным");

        string[]days = new string[]{"Monday", "Tuesday", "Wednesday", "Thusday", "Friday", "Saturday", "Sunday"};

        Console.WriteLine ("Введите день недели: ");

        int dayNumber = Convert.ToInt32 (Console.ReadLine ());  

        if(dayNumber >=1 & dayNumber <=7)

        {

            if ((dayNumber - 1) == Array.IndexOf (days, "Saturday") || (dayNumber - 1) == Array.IndexOf (days, "Sunday"))

            {

                Console.WriteLine ($"Its weekend - {days[dayNumber-1]}");

            }

            else

            {

                Console.WriteLine ($"We need to work - its {days[dayNumber-1]}");

            }

        }

        else 

        {

            Console.WriteLine ("Its not a day of week");

        }

    }

}