import java.util.Scanner;

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


        double value1 = Double.parseDouble(input.nextLine());

        String currency1 = input.nextLine();

        String currency2 = input.nextLine();
        double value2 = 0.00;

        if(currency1.equals("USD") && currency2.equals("BGN"))
        {
            value2 = value1 * 1.79549;
            System.out.printf("%.2f BGN", value2);
        }

        else if (currency1.equals("EUR") && currency2.equals("BGN")) {
            value2 = value1 * 1.95583;
            System.out.printf("%.2f BGN", value2);
        }

        else if (currency1.equals("GBP") && currency2.equals("BGN")){
            value2 = value1 * 2.53405;
            System.out.printf("%.2f BGN", value2);
        }
        else if (currency1.equals("BGN") && currency2.equals("USD")){
            value2 = value1 * 0.629525;
            System.out.printf("%.2f USD", value2);
        }
        else if (currency1.equals("BGN") && currency2.equals("EUR")){
            value2 = value1 * 0.5113;
            System.out.printf("%.2f EUR", value2);
        }
        else if (currency1.equals("BGN") && currency2.equals("GBP")){
            value2 = value1 * 0.449405195;
            System.out.printf("%.2f GBP", value2);
        }
        else if (currency1.equals("EUR") && currency2.equals("USD")){
            value2 = value1 * 1.228848;
            System.out.printf("%.2f USD", value2);
        }
        else if (currency1.equals("EUR") && currency2.equals("GBP")){
            value2 = value1 * 0.771659919;
            System.out.printf("%.2f GBP", value2);
        }
        else if (currency1.equals("USD") && currency2.equals("EUR")){
            value2 = value1 * (1.79549 / 1.95583 );
            System.out.printf("%.2f EUR", value2);
        }
        else if (currency1.equals("USD") && currency2.equals("GBP")){
            value2 = value1 * 0.713879823;
            System.out.printf("%.2f EUR", value2);
        }
        else if (currency1.equals("GBP") && currency2.equals("EUR")){
            value2 = value1 * 1.13992617;
            System.out.printf("%.2f EUR", value2);
        }
        else if (currency1.equals("GBP") && currency2.equals("USD")){
            value2 = value1 * (2.53405 / 1.79549);
            System.out.printf("%.2f EUR", value2);
        }
        else {
            System.out.println("Error");
        }
        input.close();

    }
}