FishLand

import java.util.Scanner;

public class FishMarket {
    public static void main (String[]args){
        Scanner scanner = new Scanner (System.in);
        double priceskumriqkg = Double.parseDouble(scanner.nextLine());
        double pricecacakg = Double.parseDouble(scanner.nextLine());
        double kgpalamud = Double.parseDouble(scanner.nextLine());
        double kgsafrid = Double.parseDouble(scanner.nextLine());
        double kgmidi = Double.parseDouble(scanner.nextLine());

        double PriceForPalamud = priceskumriqkg + priceskumriqkg * 0.60;
        double  SumaPalamud = kgpalamud * 11.04;
        double SumaSafrid = kgsafrid * 7.56;
        double SumaMidi = kgmidi * 7.50;
        double suma = SumaPalamud + SumaSafrid + SumaMidi;

        System.out.printf("%.2f", suma);



    }

}
//6.90
//4.20
//1.5
//2.5
//1