using System;

namespace _01.Charity_Marathon
{
    public class Program
    {
        public static void Main()
        {
            TotalMoney();
        }

        public static void TotalMoney()
        {
            var lengthOfMarathon = int.Parse(Console.ReadLine());
            var runners = long.Parse(Console.ReadLine());
            var averageLapsPerRunner = double.Parse(Console.ReadLine());
            var lengthOfTrack = long.Parse(Console.ReadLine());
            var trackCapacity = int.Parse(Console.ReadLine());
            var moneyPerKm = double.Parse(Console.ReadLine());

            if (runners  > trackCapacity * lengthOfMarathon)
            {
                runners = trackCapacity * lengthOfMarathon;
            }

            var totalMetters = averageLapsPerRunner * runners * lengthOfTrack;
            var totalKm = totalMetters / 1000.0;
            var moneyRaised = totalKm * moneyPerKm;
            Console.WriteLine($"Money raised: {moneyRaised:f2}");
        }
    }
}