fwe

using System;

namespace Exam_1
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = Console.ReadLine();
            int countElders =int.Parse(Console.ReadLine());
           int countChild =int.Parse(Console.ReadLine());
           int priceperOneElders = int.Parse(Console.ReadLine());
           int tax = int.Parse(Console.ReadLine());

           double priceChildTickets = priceperOneElders * 0.30;
            int priceElders = priceperOneElders + tax;
          double   priceChild = priceChildTickets + tax;

            double allPrice = (countChild * priceChild) + (countElders * priceElders);
            double money = allPrice * 0.20;

            Console.WriteLine($"The profit of your agency from {name} tickets is { money:f2} lv. ");




        }
    }
}