using System;

class TheBetterMusicProducer
{
    static void Main()
    {
        int soldInEurope = int.Parse(Console.ReadLine());
        double priceInEuros = double.Parse(Console.ReadLine());
        int soldInNorthAmerica = int.Parse(Console.ReadLine());
        double priceInDolars = double.Parse(Console.ReadLine());
        int soldInSouthAmerica = int.Parse(Console.ReadLine());
        double priceInPesos = double.Parse(Console.ReadLine());
        int soldDuringTour = int.Parse(Console.ReadLine());
        double oneConcertInEuro = double.Parse(Console.ReadLine());
        double europe = (soldInEurope * priceInEuros) * 1.94;
        double nAmerica = (soldInNorthAmerica * priceInDolars) * 1.72;
        double sAmerica = (soldInSouthAmerica * priceInPesos) / 332.74 ;
        double pricesCombine = (europe + nAmerica + sAmerica);
        double all = (pricesCombine  - ((pricesCombine * 35) / 100));
        double allMinusTaxes = all - ((all * 20)/ 100);
        double concertProfit = (soldDuringTour * oneConcertInEuro) * 1.94;
        if (concertProfit > 100000)
        {
            concertProfit = concertProfit - (concertProfit * 15) / 100;
        }
        if (concertProfit >= allMinusTaxes)
        {
            Console.WriteLine("On the road again! We'll see the world and earn {0:F2}lv.", concertProfit);
        }
        else
        {
            Console.WriteLine("Let's record some songs! They'll bring us {0:F2}lv.", allMinusTaxes);
        }
    }
}