diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..b36fb69 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,91 @@
     "\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": 1,
+   "id": "5875eb86",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'mug': 2, 'hat': 3, 'keychain': 5, 'book': 1, 't-shirt': 2}\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory = {'mug':0, 'hat':0, 'keychain':0, 'book':0, 't-shirt':0}\n",
+    "\n",
+    "for item in inventory:\n",
+    "    product = input (\"Enter a value\")\n",
+    "    if product in inventory:\n",
+    "        value = (int(input(\"Enter a value\")))\n",
+    "        inventory[item]=value\n",
+    "\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "3b41c672",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Availability: {'mug': 2, 'hat': 3, 'keychain': 5, 'book': 1, 't-shirt': 2}\n",
+      "{'t-shirt'}\n",
+      "Thanks for your purchase.\n"
+     ]
+    }
+   ],
+   "source": [
+    "customer_orders = set()\n",
+    "\n",
+    "continue_buying = \"Yes\"\n",
+    "\n",
+    "while continue_buying  == \"Yes\":\n",
+    "    print(\"Availability:\", inventory)\n",
+    "    product = input(\"What do you want to buy?: \")\n",
+    "    customer_orders.add(product)\n",
+    "    print(customer_orders)\n",
+    "    continue_buying = input(\"Do you want to continue buying? (Yes/No): \")\n",
+    "    \n",
+    "print(\"Thanks for your purchase.\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "3d84c06d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'mug': 2, 'hat': 3, 'keychain': 5, 'book': 1, 't-shirt': 1}\n"
+     ]
+    }
+   ],
+   "source": [
+    "customer_orders = {'t-shirt'}\n",
+    "\n",
+    "for item in customer_orders:\n",
+    "    if item in inventory:\n",
+    "        inventory[item]-=1\n",
+    "        print(inventory)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +135,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,