import java.io.*;
import java.util.*;

class LtrsToGallons{
	public static void main (String[] args)throws Exception{
		//1 Liter = 0.264172052358148 Gallons;
		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
		System.out.print("Enter the Liters:");
		int liter = Integer.parseInt(bf.readLine());
		double gallon = liter * 0.264172052358148;
		System.out.println("Gallons: " + gallon);
	}
}