diff --git a/README.md b/README.md
index cf508b1..478aca6 100644
--- a/README.md
+++ b/README.md
@@ -1,60 +1,45 @@
-# Guideline how to implement solution for Python tasks
-
-## Prepare the project
-1. Fork the repo (GitHub repository)
-1. Clone the forked repo
-    ```
-    git clone the-link-from-your-forked-repo
-    ```
-    - You can get the link by clicking the `Clone or download` button in your repo
-1. Open the project folder in your IDE
-1. Open a terminal in the project folder
-1. Create a branch for the solution and switch on it
-    ```
-    git checkout -b develop
-    ```
-    - You can use any other name instead of `develop`
-1. If you are using PyCharm - it may propose you to automatically create venv for your project 
-    and install requirements in it, but if not:
-    ```
-    python -m venv venv
-    venv\Scripts\activate (on Windows)
-    source venv/bin/activate (on macOS)
-    pip install -r requirements.txt
-    ```
-
-## Implement the solution
-1. Implement the solution within a function in `app/main.py`
-    ![Where to write a solution](./assets/where-to-write-a-solution.png)
-1. Run `pytest` to check if your solution is correct (from command line, or using PyCharm `pytest` support)
-    - If at least one test fails fix the solution and check again.
-1. Run `flake8` to see if your code follows the [flake8 rules](https://www.flake8rules.com/)
-    - If you see some errors fix them and check again
-1. Save the solution
-    ```
-    git commit -am 'Solution'
-    ```
-1. Push the solution to the repo
-    ```
-    git push origin develop
-    ```
-    - If you created another branch (not `develop`) use its name instead
-
-Note: if changes were added to GitHub task when you already forked it and 
-downloaded to your local machine, follow this 
-[guideline](./pull-changes-from-mate-repo-guideline/pull-changes-from-mate-repo-guideline.md) to pull changes.
-
-## Create a Pull Request (PR)
-1. Open your repo on GitHub and create a `Pull Request` (PR)
-    ![New PR button](./assets/new-pull-request-button.png)
-1. Select your branch in the dropdown!
-    ![Create PR button](./assets/create-pull-request-button.png)
-1. Verify the PR details and code (scroll down to see it) and confirm
-    ![Create PR confirmation](./assets/create-pull-request-confirmation.png)
-
-## If a mentor requested changes on your PR
-1. Repeat [Implement the solution](#implement-the-solution) section
-1. PR is updated automatically after a push to your branch on GitHub
-
-> After updating your PR - click on re-request button at PR page IF YOU NEED ADDITIONAL REVIEW OF YOUR CODE.
-![Image of re-request button](https://user-images.githubusercontent.com/38065883/104471439-89929200-55c3-11eb-824a-596bfb8aa246.png)
+import time
+from hashlib import sha256
+from itertools import product
+
+PASSWORDS_TO_BRUTE_FORCE = [
+    "b4061a4bcfe1a2cbf78286f3fab2fb578266d1bd16c414c650c5ac04dfc696e1",
+    "cf0b0cfc90d8b4be14e00114827494ed5522e9aa1c7e6960515b58626cad0b44",
+    "e34efeb4b9538a949655b788dcb517f4a82e997e9e95271ecd392ac073fe216d",
+    "c15f56a2a392c950524f499093b78266427d21291b7d7f9d94a09b4e41d65628",
+    "4cd1a028a60f85a1b94f918adb7fb528d7429111c52bb2aa2874ed054a5584dd",
+    "40900aa1d900bee58178ae4a738c6952cb7b3467ce9fde0c3efa30a3bde1b5e2",
+    "5e6bc66ee1d2af7eb3aad546e9c0f79ab4b4ffb04a1bc425a80e6a4b0f055c2e",
+    "1273682fa19625ccedbe2de2817ba54dbb7894b7cefb08578826efad492f51c9",
+    "7e8f0ada0a03cbee48a0883d549967647b3fca6efeb0a149242f19e4b68d53d6",
+    "e5f3ff26aa8075ce7513552a9af1882b4fbc2a47a3525000f6eb887ab9622207",
+]
+
+
+def sha256_hash_str(to_hash: str) -> str:
+    return sha256(to_hash.encode("utf-8")).hexdigest()
+
+
+def brute_force_password() -> None:
+    targets = set(PASSWORDS_TO_BRUTE_FORCE)
+    found = {}
+
+    for digits in product("0123456789", repeat=8):
+        candidate = ''.join(digits)
+        candidate_hash = sha256_hash_str(candidate)
+
+        if candidate_hash in targets:
+            print(f"[FOUND] {candidate} -> {candidate_hash}")
+            found[candidate_hash] = candidate
+
+            # Optionnel : arrêter si on a tout trouvé
+            if len(found) == len(PASSWORDS_TO_BRUTE_FORCE):
+                break
+
+
+if __name__ == "__main__":
+    start_time = time.perf_counter()
+    brute_force_password()
+    end_time = time.perf_counter()
+
+    print("Elapsed:", end_time - start_time)