diff --git a/lab-python-data-structures.ipynb b/lab-python-data-structures.ipynb
index 5b3ce9e0..125ac14a 100644
--- a/lab-python-data-structures.ipynb
+++ b/lab-python-data-structures.ipynb
@@ -21,6 +21,7 @@
     "\n",
     "1. Define a list called `products` that contains the following items: \"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\".\n",
     "\n",
+    "\n",
     "2. Create an empty dictionary called `inventory`.\n",
     "\n",
     "3. Ask the user to input the quantity of each product available in the inventory. Use the product names from the `products` list as keys in the `inventory` dictionary and assign the respective quantities as values.\n",
@@ -50,11 +51,118 @@
     "\n",
     "Solve the exercise by implementing the steps using the Python concepts of lists, dictionaries, sets, and basic input/output operations. "
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "mug is out of stock.\n",
+      "Customer orders: {'book', 'keychain', 'mug'}\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 60.0%\n",
+      "t-shirt: 1\n",
+      "mug: 0\n",
+      "hat: 1\n",
+      "book: 0\n",
+      "keychain: 0\n"
+     ]
+    }
+   ],
+   "source": [
+    "#1. Define a list called `products` that contains the following items: \n",
+    "#\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\".\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "#2. Create an empty dictionary called `inventory`.\n",
+    "inventory = {}\n",
+    "\n",
+    "#3. Ask the user to input the quantity of each product available in the inventory. \n",
+    "#Use the product names from the `products` list as keys in the `inventory` dictionary \n",
+    "#and assign the respective quantities as values.\n",
+    "for product in products:\n",
+    "    quantity = int(input(f\"Enter the quantity of {product}: \"))\n",
+    "    inventory[product] = quantity\n",
+    "\n",
+    "#4. Create an empty set called `customer_orders`.\n",
+    "\n",
+    "#Please keep in mind, because we use set, the customer can only order each product once.\n",
+    "customer_orders = set()\n",
+    "\n",
+    "#5. Ask the user to input the name of three products that a customer wants to order \n",
+    "# (from those in the products list, meaning three products out of \"t-shirt\", \"mug\", \"hat\", \n",
+    "# \"book\" or \"keychain\". Add each product name to the `customer_orders` set.\n",
+    "y=3\n",
+    "n = 0\n",
+    "\n",
+    "# I will use a placeholder inventory to track the available quantities during the\n",
+    "# ordering process\n",
+    "inventory_workingvalue = inventory.copy()\n",
+    "\n",
+    "#The while loop bellow would allow the user to buy several products of the same cathegory \n",
+    "# while it is available in the inventory. But since we are using a set for customer orders,\n",
+    "# the customer can only order each product once =(.\n",
+    "\n",
+    "while n < y:\n",
+    "    order = input(f\"Enter the name of a product you would like to order {n+1}: \")    \n",
+    "    if order in products and inventory_workingvalue[order] > 0:\n",
+    "        customer_orders.add(order)\n",
+    "        inventory_workingvalue[order] -= 1\n",
+    "        n+=1\n",
+    "    elif order in products and inventory_workingvalue[order] == 0:\n",
+    "        print(f\"{order} is out of stock.\")    \n",
+    "    else:\n",
+    "        print(f\"{order} is not available in the products list.\\nWe only sell t-shirts, mugs, hats, books, keychains\")\n",
+    "        \n",
+    "#6. Print the products in the `customer_orders` set.\n",
+    "print(\"Customer orders:\", customer_orders)\n",
+    "\n",
+    "#7. Calculate the following order statistics:\n",
+    "#   - Total Products Ordered: The total number of products in the `customer_orders` set.\n",
+    "#   - Percentage of Products Ordered: The percentage of products ordered compared to \n",
+    "# the total available products.\n",
+    "   \n",
+    "#   Store these statistics in a tuple called `order_status`.\n",
+    "total_products_ordered = len(customer_orders)\n",
+    "percentage_products_ordered = (total_products_ordered / sum(inventory.values())) * 100\n",
+    "order_status = (total_products_ordered, percentage_products_ordered)\n",
+    "\n",
+    "#8. Print the order statistics using the following format:\n",
+    "#   ```\n",
+    "#   Order Statistics:\n",
+    "#   Total Products Ordered: <total_products_ordered>\n",
+    "#   Percentage of Products Ordered: <percentage_ordered>% \n",
+    "#   ```\n",
+    "print(\"Order Statistics:\")\n",
+    "print(f\"Total Products Ordered: {total_products_ordered}\")\n",
+    "print(f\"Percentage of Products Ordered: {percentage_products_ordered}%\")\n",
+    "\n",
+    "#9. Update the inventory by subtracting 1 from the quantity of each product. \n",
+    "# Modify the `inventory` dictionary accordingly.\n",
+    "\n",
+    "def inventory_new(inventory):\n",
+    "    for product in customer_orders:\n",
+    "        if product in inventory and inventory[product] > 0:\n",
+    "            inventory[product] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "inventory = inventory_new(inventory)    \n",
+    "\n",
+    "#10. Print the updated inventory, displaying the quantity of each product on separate lines.\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(f\"{product}: {quantity}\")\n",
+    "\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -68,7 +176,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.7"
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