ChangeBureau

import java.util.Scanner;

public class ChangeBureau {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int bitkoins = Integer.parseInt(scanner.nextLine());
        double chinaIuan = Double.parseDouble(scanner.nextLine());
        double comission = Double.parseDouble(scanner.nextLine());

        double sumEuro = (bitkoins * 1168 / 1.95 + chinaIuan * 26.4 / 195) -
                (bitkoins * 1168 / 1.95 + chinaIuan * 26.4 / 195) * comission / 100;
        System.out.printf("%.2f", sumEuro);


    }
}