import java.util.Scanner;

public class firstTask {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int energy = Integer.parseInt(scanner.nextLine());
        String distance = scanner.nextLine();
        int battleCount = 0;
        while (true) {
            if (distance.equals("End of battle")) {
                System.out.printf("Won battles: %d. Energy left: %d", battleCount, energy);
                break;
            }
            if (Integer.parseInt(distance) > energy) {
                System.out.printf("Not enough energy! Game ends with %d won battles and %d energy", battleCount, energy);
                break;
            }
            if (energy == 0) {
                System.out.printf("Not enough energy! Game ends with %d won battles and %d energy", battleCount, energy);
                break;
            }
            energy = energy - Integer.parseInt(distance);
            battleCount += 1;

            if (battleCount % 3 == 0) {
                energy = energy + battleCount;
            }

            distance = scanner.nextLine();
        }
    }
}