energy = int(input())

won = 0
command = input()

while True:
    if command == "End of battle":
        print(f"Won battles: {won}. Energy left: {energy}")
        break

    distance = int(command)

    if energy < distance:
        print(f"Not enough energy! Game ends with {won} won battles and 0 energy")
        break

    if energy >= distance:
        won += 1
        energy -= distance

    if won % 3 == 0:
        energy += won

    command = input()