cs_exam_python_ss

energy = int(input())
distance = input()
count_wins = 0
while not distance == "End of battle":
    distance_as_int = int(distance)
    if energy < distance_as_int:
        print(f"Not enough energy! Game ends with {count_wins} won battles and {energy} energy")
        break
    energy = energy - distance_as_int
    count_wins += 1
    if count_wins % 3 == 0:
        energy += count_wins #Увеличаваме енергията с броя на победите на всяка 3та победа! :)
    distance = input()
if distance == "End of battle":
    print(f"Won battles: {count_wins}. Energy left: {energy}")