using System;

public class Program

{

    public static void Main()

    {

        int x=int.Parse(Console.ReadLine());

        switch (x)

        {

            case 1: Console.WriteLine("Понеделник");

            break;

            case 2: Console.WriteLine("Вторник");

            break;

            case 3: Console.WriteLine("Сряда");

            break;

            case 4: Console.WriteLine("Четвъртък");

            break;

            case 5: Console.WriteLine("Петък");

            break;

            case 6: Console.WriteLine("Събота");

            break;

            case 7: Console.WriteLine("Неделя");

            break;

            default: Console.WriteLine("Грешка");

                break;

        }

    }

}