08. Fish Tank

using System;

namespace FirstStepsInCodding
    {
        class Program
        {
            static void Main(string[] args)
            {
            int lenght = int.Parse(Console.ReadLine());
            int width = int.Parse(Console.ReadLine());
            int heigh = int.Parse(Console.ReadLine());
            double percentage = double.Parse(Console.ReadLine());

            //volume = lenght * width * heigh
            // litres = volume * 0.001
            //percentage= percentage * 0.01
            //totalLitres =  litres * (1 - percentage)
            double volume = lenght * width * heigh;
            double liters = volume * 0.001;
            percentage = percentage * 0.01;
            double totalLitres = liters * (1 - percentage);

            //izhod: litrite, koito trqbw da naleem
            Console.WriteLine(totalLitres);
        }
    }
}