06. Repainting

using System;

namespace Repainting
{
    class Program
    {
        static void Main()
        {
            int nylon = int.Parse(Console.ReadLine());
            int paint = int.Parse(Console.ReadLine());
            int thinner = int.Parse(Console.ReadLine());
            int hours = int.Parse(Console.ReadLine());

            double materials = (nylon + 2) * 1.50 + paint * 14.50 * 1.1 + thinner * 5 + 0.40;
            double workers = materials * hours * 0.30;

            Console.WriteLine(materials + workers);
        }
    }
}