diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..813f1bf 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,264 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "cf69fd28",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 200, 'mug': 200, 'hat': 200, 'book': 200, 'keychain': 200}\n",
+      "{'t-shirt', 'mug'}\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: <2>.\n",
+      "Percentage of Products Ordered: <40.0>%\n",
+      "This is the upadted inventory: \n",
+      "T-shirt: 199\n",
+      "Mug: 199\n",
+      "Hat: 200\n",
+      "Book: 200\n",
+      "Keychain: 200\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    \"\"\"Initialize an inventory in a dictionary using a loop and user input.\"\"\"\n",
+    "    inventory = {}\n",
+    "    for item in products:\n",
+    "        quantity_of_item = int(input(f'Enter the quantity of {item}: '))\n",
+    "        inventory[item] = quantity_of_item\n",
+    "    return inventory\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "\n",
+    "print(inventory)\n",
+    "\n",
+    "def get_customer_orders():\n",
+    "    \"\"\"Prompt the user to enter the product names using a loop and return customer_orders set.\"\"\"\n",
+    "    customer_orders = set()\n",
+    "    while True:\n",
+    "        user_input = input(f'Enter the name of a product from {products}')\n",
+    "        customer_orders.add(user_input)\n",
+    "        question = input(f'Do you want to add another product (yes/no): ').lower()\n",
+    "        if question == 'no':\n",
+    "            break\n",
+    "    return customer_orders\n",
+    "\n",
+    "customer_orders = get_customer_orders()\n",
+    "\n",
+    "print(customer_orders)\n",
+    "\n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    \"\"\"It takes customer_orders and products and it calculates the order statistics.\"\"\"\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_of_prodcuts_ordered = total_products_ordered/len(products)*100\n",
+    "    return (total_products_ordered, percentage_of_prodcuts_ordered)\n",
+    "\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)\n",
+    "\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    \"\"\"It takes `order_statistics` as a parameter and it prints the order statistics.\"\"\"\n",
+    "    print(\n",
+    "        f'Order Statistics:\\n'\n",
+    "        f'Total Products Ordered: <{order_statistics[0]}>.\\n'\n",
+    "        f'Percentage of Products Ordered: <{order_statistics[1]}>%'\n",
+    "    )\n",
+    "\n",
+    "print_order_statistics(order_statistics)\n",
+    "\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    \"\"\"It takes customer_orders and inventory and it updates the inventory dictionary based on the customer orders.\"\"\"\n",
+    "    for item in customer_orders:\n",
+    "        for product in products:\n",
+    "            if item == product:\n",
+    "                inventory[item] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "inventory = update_inventory(customer_orders, inventory)\n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    \"\"\"It takes inventory and it prints the updated inventory.\"\"\"\n",
+    "    print(\n",
+    "        f'This is the upadted inventory: \\n'\n",
+    "        f'T-shirt: {inventory[\"t-shirt\"]}\\n'\n",
+    "        f'Mug: {inventory[\"mug\"]}\\n'\n",
+    "        f'Hat: {inventory[\"hat\"]}\\n'\n",
+    "        f'Book: {inventory[\"book\"]}\\n'\n",
+    "        f'Keychain: {inventory[\"keychain\"]}\\n'\n",
+    "    )\n",
+    "print_updated_inventory(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "5e119d2d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 200, 'mug': 200, 'hat': 200, 'book': 200, 'keychain': 200}\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    \"\"\"Initialize an inventory in a dictionary using a loop and user input.\"\"\"\n",
+    "    inventory = {}\n",
+    "    for item in products:\n",
+    "        quantity_of_item = int(input(f'Enter the quantity of {item}: '))\n",
+    "        inventory[item] = quantity_of_item\n",
+    "    return inventory\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "f5dc1f6f",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt', 'mug'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "def get_customer_orders():\n",
+    "    \"\"\"Prompt the user to enter the product names using a loop and return customer_orders set.\"\"\"\n",
+    "    customer_orders = set()\n",
+    "    while True:\n",
+    "        user_input = input(f'Enter the name of a product from {products}')\n",
+    "        customer_orders.add(user_input)\n",
+    "        question = input(f'Do you want to add another product (yes/no): ').lower()\n",
+    "        if question == 'no':\n",
+    "            break\n",
+    "    return customer_orders\n",
+    "\n",
+    "customer_orders = get_customer_orders()\n",
+    "\n",
+    "print(customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "7be95ddd",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    \"\"\"It takes customer_orders and products and it calculates the order statistics.\"\"\"\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_of_prodcuts_ordered = total_products_ordered/len(products)*100\n",
+    "    return (total_products_ordered, percentage_of_prodcuts_ordered)\n",
+    "\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "id": "08a9d4a9",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order Statistics:\n",
+      "Total Products Ordered: <2>.\n",
+      "Percentage of Products Ordered: <40.0>%\n"
+     ]
+    }
+   ],
+   "source": [
+    "def print_order_statistics(order_statistics):\n",
+    "    \"\"\"It takes `order_statistics` as a parameter and it prints the order statistics.\"\"\"\n",
+    "    print(\n",
+    "        f'Order Statistics:\\n'\n",
+    "        f'Total Products Ordered: <{order_statistics[0]}>.\\n'\n",
+    "        f'Percentage of Products Ordered: <{order_statistics[1]}>%'\n",
+    "    )\n",
+    "\n",
+    "print_order_statistics(order_statistics)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 24,
+   "id": "ae2e34b1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def update_inventory(customer_orders, inventory):\n",
+    "    \"\"\"It takes customer_orders and inventory and it updates the inventory dictionary based on the customer orders.\"\"\"\n",
+    "    for item in customer_orders:\n",
+    "        for product in products:\n",
+    "            if item == product:\n",
+    "                inventory[item] -= 1\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 26,
+   "id": "33cc303c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "This is the upadted inventory: \n",
+      "T-shirt: 199\n",
+      "Mug: 199\n",
+      "Hat: 200\n",
+      "Book: 200\n",
+      "Keychain: 200\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory = update_inventory(customer_orders, inventory)\n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    \"\"\"It takes inventory and it prints the updated inventory.\"\"\"\n",
+    "    print(\n",
+    "        f'This is the upadted inventory: \\n'\n",
+    "        f'T-shirt: {inventory[\"t-shirt\"]}\\n'\n",
+    "        f'Mug: {inventory[\"mug\"]}\\n'\n",
+    "        f'Hat: {inventory[\"hat\"]}\\n'\n",
+    "        f'Book: {inventory[\"book\"]}\\n'\n",
+    "        f'Keychain: {inventory[\"keychain\"]}\\n'\n",
+    "    )\n",
+    "print_updated_inventory(inventory)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +314,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.9"
   }
  },
  "nbformat": 4,