OscarsCeremony/EX

using System;

namespace OscarsCeremony
{
    class Program
    {
        static void Main(string[] args)
        {
            int rent = int.Parse(Console.ReadLine());
            double statuettes = rent * 0.7;
            double removal = statuettes * 0.85;
            double sound = removal / 2;
            double totalPrice = rent + statuettes + removal + sound;
            Console.WriteLine($"{totalPrice:f2}");
        }
    }
}