08. Fish Tank

using System;

namespace Birthday
{
    class Program
    {
        static void Main(string[] args)
        {
           double aquariumLength = double.Parse(Console.ReadLine());
            double aquariumWidth = double.Parse(Console.ReadLine());
            double aquariumHeigth = double.Parse(Console.ReadLine());
            double percent = double.Parse(Console.ReadLine());

            double aquariumCapacity = aquariumHeigth * aquariumLength * aquariumWidth;
            double totalLiters = aquariumCapacity * 0.001;
            double calculatedPercent = percent * 0.01;
            double litersNeeded = totalLiters * (1 - calculatedPercent);
            Console.WriteLine("{0:F3}",litersNeeded);
        }
    }
}