man_o_war_functions100/100

def valid_index(i, current_list):
    if 0 <= i < len(current_list):
        return True
    return False


def fire(enemy_ship):
    index = int(command[1])
    damage = int(command[2])
    game_finished = False
    if valid_index(index, enemy_ship):
        warship[index] -= damage
        if warship[index] <= 0:
            game_finished = True
            print('You won! The enemy ship has sunken.')
            enemy_ship.clear()
    return enemy_ship


def defend(our_ship):
    start_index = int(command[1])
    end_index = int(command[2])
    damage = int(command[3])
    game_finished = False
    if valid_index(start_index, our_ship) and valid_index(end_index, pirate_ship):
        for s in range(start_index, end_index + 1):
            our_ship[s] -= damage
            if our_ship[s] <= 0:
                game_finished = True
                break
        if game_finished:
            print("You lost! The pirate ship has sunken.")
            our_ship.clear()
            return our_ship

def repair(our_ship):
    index = int(command[1])
    health = int(command[2])
    if valid_index(index, our_ship):
        if our_ship[index] + health <= max_health_capacity:
            our_ship[index] += health
        else:
            diff = max_health_capacity - our_ship[index]
            our_ship[index] += diff


def status(our_ship):
    repair_sections = [s for s in our_ship if s < (max_health_capacity * 0.2)]
    return f"{len(repair_sections)} sections need repair."


pirate_ship = list(map(int, input().split('>')))
warship = list(map(int, input().split('>')))
max_health_capacity = int(input())


while True:
    game_ended = False
    command = input().split()
    command_name = command[0]
    if command_name == 'Retire':
        if command_name == 'Retire':
            print(f"Pirate ship status: {sum(pirate_ship)}\n"
                  f"Warship status: {sum(warship)}")
            break
    elif command_name == 'Fire':
        fire(warship)
        if len(warship) == 0:
            break
    elif command_name == 'Defend':
        defend(pirate_ship)
        if len(pirate_ship) == 0:
            break
    elif command_name == 'Repair':
        repair(pirate_ship)
    elif command_name == 'Status':
        print(status(pirate_ship))