import java.util.Scanner;

public class demo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

     int games = Integer.parseInt(scanner.nextLine());
     double headsetPrice = Double.parseDouble(scanner.nextLine());
     double mousePrice = Double.parseDouble(scanner.nextLine());
     double keyboardPrice = Double.parseDouble(scanner.nextLine());
     double displayPrice = Double.parseDouble(scanner.nextLine());

     int headsets = games/2;
     int mice = games/3;
     int keyboard = games/6;
     int display = games/12;

     double total = headsets*headsetPrice+mice*mousePrice+keyboard*keyboardPrice+display*displayPrice;

        System.out.printf("Rage expenses: %.2f lv.",total);
    }
}