using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Въведи число за ден от седмицата");

        var day = int.Parse(Console.ReadLine());

        switch(day)

        {

            case 1: Console.WriteLine("Monday"); break;

            case 2: Console.WriteLine("Tuesday"); break;

            case 3: Console.WriteLine("Wednesday"); break;

            case 4: Console.WriteLine("Thursday"); break;

            case 5: Console.WriteLine("Friday"); break;

            case 6: Console.WriteLine("Saturday"); break;

            case 7: Console.WriteLine("Sunday"); break;

            default: Console.WriteLine("Error"); break;

        }

    }

}