using System;

namespace Harvest
{
    class Program
    {
        static void Main(string[] args)
        {
            int squareMeters = int.Parse(Console.ReadLine());
            double kilogramsBerry = double.Parse(Console.ReadLine());
            int litersForSale = int.Parse(Console.ReadLine());
            int workers = int.Parse(Console.ReadLine());
            double totalKilogramsBerry = (squareMeters * 0.4) * kilogramsBerry;
            double totallitersWine = totalKilogramsBerry / 2.5;
            if (totallitersWine >= litersForSale)
            {
                Console.WriteLine($"Good harvest this year! Total wine: {Math.Floor(totallitersWine)} liters.");
                Console.WriteLine($"{Math.Round(totallitersWine - litersForSale)} liters left -> {Math.Round((totallitersWine - litersForSale)/workers)} liters per person.");
            }
            else
            {
                Console.WriteLine($"It will be a tough winter! More {Math.Floor(litersForSale - totallitersWine)} liters wine needed.");
            }
        }
    }
}