01. USD to BGN

import java.util.Scanner;

public class USDToBGN {

    public static void main(String[] args) {
        // 1 USD = 1.79549 BGN

        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();

        double usd = Double.parseDouble(input);
        double bgn = usd * 1.79549;

        System.out.println(bgn);
    }

}