diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..78ac785 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,6 +43,83 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "3588f6d6",
+   "metadata": {
+    "vscode": {
+     "languageId": "plaintext"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        quantity = int(input(f\"Enter quantity for {product}: \"))\n",
+    "        inventory[product] = quantity\n",
+    "    return inventory\n",
+    "\n",
+    "\n",
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "    \n",
+    "    while True:\n",
+    "        product = input(\"Enter a product name: \").lower()\n",
+    "        \n",
+    "        if product in products:\n",
+    "            customer_orders.add(product)\n",
+    "        else:\n",
+    "            print(\"Product not available. Please choose from the list.\")\n",
+    "            continue\n",
+    "        \n",
+    "        another = input(\"Do you want to add another product? (yes/no): \").lower()\n",
+    "        if another != \"yes\":\n",
+    "            break\n",
+    "    \n",
+    "    return customer_orders\n",
+    "\n",
+    "\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for product in customer_orders:\n",
+    "        if product in inventory:\n",
+    "            inventory[product] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "\n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    total_unique_orders = len(customer_orders)\n",
+    "    percentage_unique_orders = (total_unique_orders / len(products)) * 100\n",
+    "    return total_unique_orders, percentage_unique_orders\n",
+    "\n",
+    "\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    total, percentage = order_statistics\n",
+    "    print(f\"Total unique products ordered: {total}\")\n",
+    "    print(f\"Percentage of unique products ordered: {percentage:.2f}%\")\n",
+    "\n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated inventory:\")\n",
+    "    for product, quantity in inventory.items():\n",
+    "        print(f\"{product}: {quantity}\")\n",
+    "\n",
+    "\n",
+    "# --- Ejecución ---\n",
+    "inventory = initialize_inventory(products)\n",
+    "customer_orders = get_customer_orders()\n",
+    "inventory = update_inventory(customer_orders, inventory)\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)\n",
+    "\n",
+    "print_order_statistics(order_statistics)\n",
+    "print(\"Customer orders:\", customer_orders)\n",
+    "print_updated_inventory(inventory)"
+   ]
   }
  ],
  "metadata": {