/* package whatever; // don't place package name! */

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

class Car{
	//pola
	private double fuelEfficiency, fuelLevel, fuelCost, lastFuelChange;
	//konstruktor
	public Car(double fuelEfficiency){
		this.fuelEfficiency = fuelEfficiency;
		fuelLevel = 0;
	}
	//metody
	void drive(double distance){
		if(fuelLevel < distance / fuelEfficiency){
			System.out.println("Not enough fuel.");
		}else{
			System.out.println("Driving " + distance + "miles...");
			lastFuelChange = distance / fuelEfficiency;
			fuelLevel -= lastFuelChange;
		}
	}
	
	double convertToLitres(double gallons){
		return gallons * 4.546;
	}
	
	double getFuel(){
		return fuelLevel;
	}
	
	void addFuel(double quantity){
		System.out.println("Adding " + quantity + " gallons of fuel...");
		fuelLevel += quantity;
		lastFuelChange = quantity;
	}
	
	double fuelCost(){
		return lastFuelChange;
	}
	
	double getCost(){ // tego trochę nie rozumiem, "returns the cost of fuel in pounds and pence"? zwracam koszt w funtach.
		return 1.359;
	}
}
	
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
	}
}