diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..7fb5982 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,6 +37,63 @@
     "\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": null,
+   "id": "2df46550",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products_list = ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n",
+    "inventory = { }\n",
+    "for product in products_list:\n",
+    "    while True:\n",
+    "        quantity_input = input(f\"Enter the quantity for {product}: \") or '0'\n",
+    "        try:\n",
+    "            quantity = int(quantity_input)\n",
+    "            inventory[product] = quantity\n",
+    "            break\n",
+    "        except ValueError:\n",
+    "            print(\"Please enter a valid integer.\")\n",
+    "\n",
+    "customer_orders = set()\n",
+    "\n",
+    "while True:\n",
+    "    product = input(\"Enter a product (choose from 't-shirt', 'mug', 'hat', 'book', 'keychain'): \").strip().lower()\n",
+    "    \n",
+    "    if product in products_list:\n",
+    "        customer_orders.add(product)\n",
+    "        print(f\"{product} has been added to the order.\")\n",
+    "    else:\n",
+    "        print(f\"{product} is not a valid choice and will not be added.\")\n",
+    "    add_more = input(\"Do you want to add another product? (yes/no): \").strip().lower()\n",
+    "    \n",
+    "    if add_more != 'yes':\n",
+    "        break\n",
+    "\n",
+    "print(\"products in order:\", customer_orders)\n",
+    "\n",
+    "total_ordered = len(customer_orders)\n",
+    "total_available = len(products_list)\n",
+    "percentage = (total_ordered / total_available) * 100\n",
+    "\n",
+    "order_status = (total_ordered, percentage)\n",
+    "\n",
+    "print(\"\\norder statistics:\")\n",
+    "print(f\"total products ordered: {order_status[0]}\")\n",
+    "print(f\"percentage of products ordered: {order_status[1]:.2f}%\")\n",
+    "\n",
+    "for product in customer_orders:\n",
+    "    if product in inventory and inventory[product] > 0:\n",
+    "        inventory[product] -= 1\n",
+    "        print(f\"Successfully ordered {product}. Remaining: {inventory[product]}\")\n",
+    "    \n",
+    "\n",
+    "print(\"\\nupdated inventory:\")\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(f\"{product}: {quantity}\")\n"
+   ]
   }
  ],
  "metadata": {