using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Problem_03.Flowers3
{
    class Program
    {
        static void Main(string[] args)

        {
            double hrizantemi = double.Parse(Console.ReadLine());
            double rozi = double.Parse(Console.ReadLine());
            double laleta = double.Parse(Console.ReadLine());
            string season = Console.ReadLine();
            string PraznikIliNe = Console.ReadLine();

            double hrizantemiProletLqto = 2.00;
            double hrizantemiEsenZima = 3.75;
            double roziProletLqto = 4.10;
            double roziEsenZima = 4.50;
            double laletaProletLqto = 2.50;
            double laletaEsenZima = 4.15;

            double price = 0;
            double priceProletLqto = hrizantemiProletLqto * hrizantemi + roziProletLqto * rozi +
                laletaProletLqto * laleta;
            double priceEsenZima = hrizantemiEsenZima * hrizantemi + roziEsenZima * rozi +
                laletaEsenZima * laleta;
            double allFlowers = hrizantemi + rozi + laleta;

            //sezon
            if (season == "Summer" || season == "Spring")
            {
                //praznik
                if (PraznikIliNe == "Y")
                {
                    price = priceProletLqto + priceProletLqto * 0.15;
                    //po malko laleta
                    if (laleta > 7)
                    {
                        price -= price * 0.05;

                        //poveche cvetia
                        if (allFlowers >= 20)
                        {
                            price -= price * 0.20;
                            Console.WriteLine($"{price + 2:f2}");
                        }
                        else
                        {
                            Console.WriteLine($"{price + 2:f2}");
                        }
                    }
                    else
                    {
                        Console.WriteLine($"{price + 2:f2}");
                    }
                }

                //nqma praznik
                else if (PraznikIliNe == "N")
                {
                    price = priceProletLqto;

                    if (laleta > 7)
                    {
                        price -= price * 0.05;

                        if (allFlowers >= 20)
                        {
                            price -= price * 0.20;
                            Console.WriteLine($"{price + 2:f2}");
                        }
                        else
                        {
                            Console.WriteLine($"{price + 2:f2}");
                        }
                    }

                    else
                    {
                        Console.WriteLine($"{price + 2:f2}");
                    }
                }
            }


            //
            if (season == "Autumn" || season == "Winter")
            {

                if (PraznikIliNe == "Y")
                {
                    price = priceEsenZima + priceEsenZima * 0.15;

                    if (rozi >= 10)
                    {
                        price -= price * 0.10;
                        if (allFlowers >= 20)
                        {
                            price -= price * 0.20;
                            Console.WriteLine($"{price + 2:f2}");
                        }
                        else
                        {
                            Console.WriteLine($"{price + 2:f2}");
                        }
                    }

                    else
                    {
                        Console.WriteLine($"{price + 2:f2}");
                    }
                }
                else if (PraznikIliNe == "N")
                {
                    price = priceEsenZima;

                    if (rozi >= 10)
                    {
                        price -= price * 0.10;
                        if (allFlowers >= 20)
                        {
                            price -= price * 0.20;
                            Console.WriteLine($"{price + 2:f2}");
                        }
                        else
                        {
                            Console.WriteLine($"{price + 2:f2}");
                        }
                    }

                    else
                    {
                        Console.WriteLine($"{price + 2:f2}");
                    }
                }

            }

        }
    }
}