diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..76d7db1 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,317 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "84de27db",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "1550e364",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "         quantity = int(input(f'Enter the quantity for {product}: '))\n",
+    "         inventory[product] = quantity\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "d6315653",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "inventory = initialize_inventory(products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "58039c2b",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'t-shirt': 5, 'mug': 7, 'hat': 2, 'book': 8, 'keychain': 9}"
+      ]
+     },
+     "execution_count": 20,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "id": "4561077c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "customer_orders = set()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "4d374665",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "    for i in range(3):\n",
+    "        product = input('Enter a product: ')\n",
+    "        customer_orders.add(product)\n",
+    "    return customer_orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "id": "b77d62b6",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "orders = get_customer_orders()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 24,
+   "id": "c1cbdaf5",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'book', 'hat', 'mug'}"
+      ]
+     },
+     "execution_count": 24,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "id": "8ab6880b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for product in customer_orders:\n",
+    "        inventory[product] -= 1\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 26,
+   "id": "c01a0ff2",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "inventory = update_inventory(orders, inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "id": "4b5a48a2",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'t-shirt': 5, 'mug': 6, 'hat': 1, 'book': 7, 'keychain': 9}"
+      ]
+     },
+     "execution_count": 27,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 28,
+   "id": "9a2e853a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_of_unique_products_ordered = (total_products_ordered / len(products)) * 100\n",
+    "    return total_products_ordered, percentage_of_unique_products_ordered"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 29,
+   "id": "11ba4bd0",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "order_statistics = calculate_order_statistics(orders, products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 30,
+   "id": "59fda4ec",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "(3, 60.0)"
+      ]
+     },
+     "execution_count": 30,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "order_statistics"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 31,
+   "id": "2c952292",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def print_order_statistics(order_statistics):\n",
+    "    total_products_ordered, percentage_of_unique_products_ordered = order_statistics\n",
+    "\n",
+    "    print('Order Statistics:')\n",
+    "    print('Total Products Ordered:', total_products_ordered)\n",
+    "    print('Percentage of unique products Ordered:', percentage_of_unique_products_ordered)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 32,
+   "id": "04f7388d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order Statistics:\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of unique products Ordered: 60.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "print_order_statistics(order_statistics)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 33,
+   "id": "47d12f2a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def print_update_inventory(inventory):\n",
+    "    for product in inventory:\n",
+    "        print(product,\":\", inventory[product])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 34,
+   "id": "6009b4dc",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "t-shirt : 5\n",
+      "mug : 6\n",
+      "hat : 1\n",
+      "book : 7\n",
+      "keychain : 9\n"
+     ]
+    }
+   ],
+   "source": [
+    "print_update_inventory(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 35,
+   "id": "8e5d2722",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order Statistics:\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of unique products Ordered: 60.0\n",
+      "t-shirt : 5\n",
+      "mug : 7\n",
+      "hat : 4\n",
+      "book : 3\n",
+      "keychain : 3\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "\n",
+    "orders = get_customer_orders()\n",
+    "\n",
+    "inventory = update_inventory(orders, inventory)\n",
+    "\n",
+    "order_statistics = calculate_order_statistics(orders, products)\n",
+    "\n",
+    "print_order_statistics(order_statistics)\n",
+    "\n",
+    "print_update_inventory(inventory)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +367,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.4"
   }
  },
  "nbformat": 4,