using System;

    class Program
    {
        static void Main()
        {
            string leap = Console.ReadLine();
            uint holidays = uint.Parse(Console.ReadLine());
            uint hometownWeekends = uint.Parse(Console.ReadLine());
            uint year = 52;
            double playHoliday = holidays / 2;

            double normalWeekends = ((year - hometownWeekends)/3);
            double normalWeekendsResult = normalWeekends * 2;

            double result = normalWeekendsResult + playHoliday + hometownWeekends;

            if (leap == "t")
            {
                Console.WriteLine(Math.Round(result) + 3);
            }
            else
            {
                Console.WriteLine(Math.Round(result, MidpointRounding.AwayFromZero));
            }

        }
    }