using System;

namespace CinemaTicket_Switch
{
internal class Program
{
    static void Main(string[] args)
    {
        string weekDay = Console.ReadLine();

        switch (weekDay)
        {
            case "Monday":
            case "Tuesday":
            case "Friday":
                Console.WriteLine("12");
                break;

            case "Wednesday":
            case "Thursday":
                Console.WriteLine("14");
                break;

            case "Saturday":
            case "Sunday":
                Console.WriteLine("16");
                break;
        }

    }
}
}