Counter Strike

import java.util.Scanner;

public class counterStrikeDemo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int energy = Integer.parseInt(scanner.nextLine());

        String input = scanner.nextLine();
        int battleWin = 0;
        boolean energyIsZero = false;

        while (!input.equals("End of battle")) {
            int distance = Integer.parseInt(input);

            if (energy < distance) {
                energyIsZero = true;
                break;

            } else {
                energy -= distance;
                battleWin++;

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

            input = scanner.nextLine();
        }

        if (energyIsZero) {
            System.out.println(String.format("Not enough energy! Game ends with %d won battles and %d energy",
                    battleWin,energy));
        } else {
            System.out.println(String.format("Won battles: %d. Energy left: %d",battleWin,energy));
        }
    }
}