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

namespace help
{
    class Program
    {
        static void Main(string[] args)
        {
            int X_loze_area = int.Parse(Console.ReadLine());
            double Y_grapes_for_one_sq = double.Parse(Console.ReadLine());
            int Z_needed_litres = int.Parse(Console.ReadLine());
            int number_of_workers = int.Parse(Console.ReadLine());

            //judge sumbit link: https://judge.softuni.bg/Contests/Practice/Index/507#3

            double kg_grapes = (X_loze_area * Y_grapes_for_one_sq) * 0.4;
            double vino = kg_grapes / 2.5;

            if (vino >= Z_needed_litres)
            {
                Console.WriteLine("Good harvest this year! Total wine: {0} liters.", Math.Floor(vino));
                Console.WriteLine("{0} liters left -> {1} liters per person.", Math.Ceiling(vino - Z_needed_litres), Math.Ceiling((vino -Z_needed_litres) / number_of_workers));

            }

            else

            {
                Console.WriteLine("It will be a tough winter! More {0} liters wine needed.", Math.Floor(Z_needed_litres - vino));
            }

        }
    }
}