from collections import deque
import zipfile
import os

def get_salary(file_path):
    with open(file_path, "r", encoding="utf-8") as file:
        data = file.read()
    salary = data.strip().split()[-1]
    return int(salary)

def dir_handle(dir_path, data):
    for el in os.listdir(dir_path):
        if not el.startswith("."):
            data["q"].append(os.path.join(dir_path, el))

def file_handle(file_path, data):
    if(file_path.endswith(".DS_Store")): return
    data["total_salary"] += get_salary(file_path)


def handle_element(element, data):
    if os.path.isdir(element): dir_handle(element, data)
    else: file_handle(element, data)

def extract_zip(zip_path, extract_folder):
    with zipfile.ZipFile(zip_path, "r") as zip_ref:
        zip_ref.extractall(extract_folder)

# Решение
extract_zip("./big_folder.zip", "./big_folder")
data = {"total_salary": 0, "q": deque()}
data["q"].append("./big_folder")

while data["q"]:
    curr_path = data["q"].popleft()
    handle_element(curr_path, data)

print(data["total_salary"])