02. Days of week

using System;

namespace _01._Day_Of_Week
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int number = int.Parse(Console.ReadLine());
            //[1...7]
            //1 -> Monday
            //2 -> Tuesday
            //3 -> Wednesday
            //4 -> Thursday
            //5 -> Friday
            //6 -> Saturday
            //7 -> Sunday
            // < 1 или > 7 -> Invalid day!

            string[] daysOfWeek = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };


            if (number < 1 || number > 7)
            {
                Console.WriteLine("Invalid day!");
            }
            else
            {
                //number е [1; 7]
                Console.WriteLine(daysOfWeek[number - 1]);
            }
        }
    }
}