/*
 *   作成	Rhizome
 *------------------------------------------------------------
 * Copyright(c) Rhizome Inc. All Rights Reserved.
 */
import java.util.Random;

public class Car {
	String color;
	int gasoline;
	Driver driverInfo;

	int run() {
		this.gasoline--;

		if (gasoline < 0) {
			return -1;
		}

		Random random = new Random();
		int distance = random.nextInt(15) + 1;
		return distance;
	}
}