diff --git a/lab-python-data-structures.ipynb b/lab-python-data-structures.ipynb
index 5b3ce9e0..01ac8fdb 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 +51,154 @@
     "\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": [
+      "{'t-shirt': 21, 'mug': 33, 'hat': 45, 'book': 34, 'keychain': 54}\n"
+     ]
+    }
+   ],
+   "source": [
+    "products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
+    "inventory={}\n",
+    "for p in products:\n",
+    "    quantity= int(input(f\"how many units of {p} is in the inventory? \")) \n",
+    "    if quantity == \"\":\n",
+    "        quantity=0\n",
+    "    else:\n",
+    "        quantity =int(quantity)\n",
+    "        \n",
+    "    inventory[p]=quantity\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Choose 3 products from the list: ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n"
+     ]
+    }
+   ],
+   "source": [
+    "products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
+    "costumer_orders= set()\n",
+    "print(\"Choose 3 products from the list:\", products)\n",
+    "for i in range(3):\n",
+    "    while True:\n",
+    "        item = input(f\"Product {i+1}: \").strip().lower()\n",
+    "        if item in products:\n",
+    "            costumer_orders.add (item)\n",
+    "            break\n",
+    "        else:\n",
+    "            print=(\"Invalid product. Choose from:\", products)\n",
+    "\n",
+    "\n",
+    "print(\"\\nProducts Ordered:\", costumer_orders)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<class 'builtin_function_or_method'> <built-in function print>\n"
+     ]
+    }
+   ],
+   "source": [
+    "import builtins\n",
+    "builtins.print(type(print), print) "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 1.60%\n"
+     ]
+    }
+   ],
+   "source": [
+    "products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
+    "inventory={'t-shirt': 21, 'mug': 33, 'hat': 45, 'book': 34, 'keychain': 54}\n",
+    "costumer_orders= set()\n",
+    "costumer_orders.update([\"t-shirt\",\"mug\",\"hat\"])\n",
+    "total_ordered = len(costumer_orders)\n",
+    "total_inventory = sum(inventory.values())\n",
+    "if total_inventory > 0:\n",
+    "    percentage_ordered = (total_ordered / total_inventory) * 100\n",
+    "else:\n",
+    "  percentage_ordered = 0\n",
+    "print(f\"Total Products Ordered: {total_ordered}\")\n",
+    "print(f\"Percentage of Products Ordered: {percentage_ordered:.2f}%\")\n",
+    "\n",
+    "\n",
+    "     \n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 20\n",
+      "mug: 32\n",
+      "hat: 44\n",
+      "book: 34\n",
+      "keychain: 54\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "for item in costumer_orders:\n",
+    "    if inventory.get(item, 0) > 0:\n",
+    "        inventory[item] -= 1\n",
+    "print(\"\\nUpdated Inventory:\")\n",
+    "for p in products:\n",
+    "    print(f\"{p}: {inventory.get(p, 0)}\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -68,7 +212,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,