import java.util.ArrayList;
import java.util.List;
class Race {
List cars = new ArrayList<>();
public void addCar(Car car) {
cars.add(car);
}
public Car getFastestCar() {
Car fastestCar = null;
for (Car car : cars) {
if (fastestCar == null || car.speed > fastestCar.speed) {
fastestCar = car;
}
}
return fastestCar;
}
public int distanceIn24Hours(int speed) {
return speed * 24;
}
}