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

namespace rekolta
{
    class Program
    {
        static void Main(string[] args)
        {

            double plosht = double.Parse(Console.ReadLine());
            double Grozde = double.Parse(Console.ReadLine()); // kg grozde ot 1 kvadraten metar
            double VinoZaProdan = double.Parse(Console.ReadLine());
            int rabotnici = int.Parse(Console.ReadLine());


            double LitriGrozde = plosht * Grozde;
            double vino = LitriGrozde * 0.4 / 2.5;

            double razlika = Math.Abs(VinoZaProdan - vino);
            double VinoRabotnici = Math.Floor(razlika / rabotnici);

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


            }

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


        }
    }
}