diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..d68f7bb 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -1,63 +1,40 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "d3bfc191-8885-42ee-b0a0-bbab867c6f9f",
-   "metadata": {
-    "tags": []
-   },
-   "source": [
-    "# Lab | Flow Control"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "id": "3851fcd1-cf98-4653-9c89-e003b7ec9400",
-   "metadata": {},
-   "source": [
-    "## Exercise: Managing Customer Orders Optimized\n",
-    "\n",
-    "In the last lab, you were starting an online store that sells various products. To ensure smooth operations, you developed a program that manages customer orders and inventory.\n",
-    "\n",
-    "You did so without using flow control. Let's go a step further and improve this code.\n",
-    "\n",
-    "Follow the steps below to complete the exercise:\n",
-    "\n",
-    "1. Look at your code from the lab data structures, and improve repeated code with loops.\n",
-    "\n",
-    "2. Instead of asking the user to input the name of three products that a customer wants to order, do the following:\n",
-    "    \n",
-    "    a. Prompt the user to enter the name of a product that a customer wants to order.\n",
-    "    \n",
-    "    b. Add the product name to the \"customer_orders\" set.\n",
-    "    \n",
-    "    c. Ask the user if they want to add another product (yes/no).\n",
-    "    \n",
-    "    d. Continue the loop until the user does not want to add another product.\n",
-    "\n",
-    "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.13"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}
+products = ["t-shirt", "mug", "hat", "book", "keychain"]
+
+inventory = {}
+
+for product in products:
+  print ("Enter the quantity of each product available in the inventory for " + product + " : ")
+  quantity = int(input())
+  inventory[product] = quantity
+
+customer_orders = set()
+
+while True:
+    order = input("Enter product ordered: ").lower()
+    
+    if order in products:  # On vérifie que le produit existe
+        customer_orders.add(order)
+    else:
+        print("This product is not available in the store.")
+
+    more = input("Do you want to add another product? (yes/no): ").lower()
+    if more != "yes":
+        break
+
+print("Products ordered:", customer_orders)
+
+total_products_ordered = len(customer_orders)
+percentage_ordered = (total_products_ordered / len(products)) * 100
+order_status = (total_products_ordered, percentage_ordered)
+
+print("\nOrder Statistics:")
+print("Total Products Ordered:", order_status[0])
+print("Percentage of Products Ordered:", round(order_status[1], 2), "%")
+
+for item in customer_orders:
+  if item in inventory:
+    inventory[item] -= 1
+
+print("\nUpdated Inventory:")
+for product, quantity in inventory.items():
+    print(product, ":", quantity)