{ static void Main(String[] args)
        {
            string[] days = { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Sathurday", "Sunday" };
            int day = int.Parse(Console.ReadLine());
            if (day >= 1 && day <= 7)
            {
                Console.WriteLine(days[day - 1]);
            }
            else
            {
                Console.WriteLine("Invalid day!");
            }
        }