diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..f880a3d
Binary files /dev/null and b/.DS_Store differ
diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..4bb124e 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,83 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "2bfa9eb9",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(0, 0.0)\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n",
+    "customer_orders = set()\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        quantity = int(input(f\"How many {product}s do you have? \"))\n",
+    "        inventory[product] = quantity\n",
+    "    return inventory\n",
+    "\n",
+    "def get_customer_orders():\n",
+    "    \n",
+    "    customer_orders = set()\n",
+    "\n",
+    "    condition = \"yes\"\n",
+    "\n",
+    "    while condition == \"yes\":\n",
+    "        order = input(f'Please enter the name of a product you want to order:')\n",
+    "        customer_orders.add(order)\n",
+    "\n",
+    "        condition = input('Do you want to add another product (yes/no)?')\n",
+    "\n",
+    "    return (f'You added following products: {customer_orders}')\n",
+    "\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for item in customer_orders:\n",
+    "        if item in inventory:\n",
+    "            inventory[item] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    total = len(customer_orders)\n",
+    "    percentage = (total / len(products)) * 100\n",
+    "    return total, percentage\n",
+    "    \n",
+    "\n",
+    "stats = calculate_order_statistics(customer_orders, products)\n",
+    "print (stats)\n",
+    "\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    print (f'Order Statistics: Total Products Ordered: {order_status[0]},Percentage of Products Ordered: {order_status[1]}')\n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print ('Updated inventory:', inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "9351864a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +133,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,