diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..93ab5dc 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,74 @@
     "\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\")."
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "id": "b2271121",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "List of inventory:  {'t-shirt': 45, 'mug': 87, 'hat': 90, 'book': 23, 'keychain': 44}\n",
+      "All products added to the order.\n",
+      "Customer order: {'mug', 'book'}\n",
+      "Updated inventory:\n",
+      "t-shirt : 45\n",
+      "mug : 86\n",
+      "hat : 90\n",
+      "book : 22\n",
+      "keychain : 44\n"
+     ]
+    }
+   ],
+   "source": [
+    "#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\").\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "inventory = {}\n",
+    "\n",
+    "#Ask the user to input the quantity of each product available in the inventory. Use the product names from the `products` list as keys in the `inventory` dictionary and assign the respective quantities as values.\n",
+    "for product in products:\n",
+    "    quantity = int(input(f\"Enter the quantity for {product}: \"))\n",
+    "    inventory[product] = quantity #add to the dictionairy: key = assign the value\n",
+    "\n",
+    "print(\"List of inventory: \", inventory)\n",
+    "\n",
+    "customer_order = set()\n",
+    "\n",
+    "while True:\n",
+    "    p = input(\"Enter the product you want to order: \")\n",
+    "    customer_order.add(p)\n",
+    "\n",
+    "    user_input = input(\"Do you want to add another product? (yes/no): \").lower()\n",
+    "\n",
+    "    if user_input == \"yes\":\n",
+    "        continue\n",
+    "    else:\n",
+    "        print(\"All products added to the order.\")\n",
+    "        break\n",
+    "\n",
+    "print(\"Customer order:\", customer_order)\n",
+    "\n",
+    "for product in customer_order:\n",
+    "    if product in inventory:\n",
+    "        inventory[product] -= 1\n",
+    "    else:\n",
+    "        print({product}, \"is not in the inventory.\")\n",
+    "\n",
+    "print(\"Updated inventory:\")\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(product, \":\", quantity)\n",
+    "\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +118,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.9"
   }
  },
  "nbformat": 4,