public class MyClass {
    public static void main(String args[]) {
        java.util.Scanner scanner = new java.util.Scanner(System.in);
        int lostGames = scanner.nextInt();
        double headsetPrice = scanner.nextDouble();
        double mousePrice = scanner.nextDouble();
        double keyboardPrice = scanner.nextDouble();
        double displayPrice = scanner.nextDouble();

        int kbSmashCount = 0;

        double damageCost = 0.0;

        for(int game = 1; game <= lostGames; game++) {
            if(game % 2 == 0) {
                damageCost+=headsetPrice;
            }
            if (game % 3 == 0) {
                damageCost+=mousePrice;
            }
            if (game % 6 == 0) {
                kbSmashCount++;
                damageCost+=keyboardPrice;
                if (kbSmashCount % 2 == 0) {
                    damageCost+=displayPrice;
                }
            }
        }
        System.out.printf("Rage expenses: %.2f lv.", damageCost);
    }
}