03. Harvest

using System;

namespace Harvest
{
    class Program
    {
        static void Main()
        {
            double x = double.Parse(Console.ReadLine());
            double y = double.Parse(Console.ReadLine());
            double z = double.Parse(Console.ReadLine());
            int workers = int.Parse(Console.ReadLine());

            double wine = 0.4 * x * y / 2.5;

            if (wine < z)
            {
                Console.WriteLine($"It will be a tough winter! More {Math.Floor(z - wine)} liters wine needed.");
            }
            else
            {
                Console.WriteLine($"Good harvest this year! Total wine: {Math.Floor(wine)} liters.");
                Console.WriteLine($"{Math.Ceiling(wine - z)} liters left -> {Math.Ceiling((wine - z) / workers)} liters per person.");
            }
        }
    }
}