diff --git a/lab-python-data-structures.ipynb b/lab-python-data-structures.ipynb
index 5b3ce9e..b4e09a3 100644
--- a/lab-python-data-structures.ipynb
+++ b/lab-python-data-structures.ipynb
@@ -10,8 +10,200 @@
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": 2,
    "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter quantity t-shirt:  10\n",
+      "Enter quality mug:  10\n",
+      "Enter quality hat:  10\n",
+      "Enter quality book:  10\n",
+      "Enter quality keychain:  10\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "inventory = {}\n",
+    "quantity_tshirt = int(input(\"Enter quantity t-shirt: \"))\n",
+    "quantity_mug = int(input(\"Enter quality mug: \"))\n",
+    "quantity_hat = int(input(\"Enter quality hat: \"))\n",
+    "quantity_book = int(input(\"Enter quality book: \"))\n",
+    "quantity_keychain = int(input(\"Enter quality keychain: \"))\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 10, 'mug': 10, 'hat': 10, 'book': 10, 'keychain': 10}\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory = {\n",
+    "    \"t-shirt\": quantity_tshirt,\n",
+    "    \"mug\": quantity_mug,\n",
+    "    \"hat\": quantity_hat,\n",
+    "    \"book\": quantity_book,\n",
+    "    \"keychain\": quantity_keychain\n",
+    "}\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter product 1 from ['t-shirt', 'mug', 'hat', 'book', 'keychain']:  hat\n",
+      "Enter product 2 from ['t-shirt', 'mug', 'hat', 'book', 'keychain']:  book\n",
+      "Enter product 3 from ['t-shirt', 'mug', 'hat', 'book', 'keychain']:  mug\n"
+     ]
+    }
+   ],
+   "source": [
+    "customer_orders = set()\n",
+    "\n",
+    "for p in range(3):\n",
+    "    product = input(f\"Enter product {p+1} from {products}: \")\n",
+    "    customer_orders.add(product)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'hat', 'mug', 'book'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(customer_orders) "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "3\n"
+     ]
+    }
+   ],
+   "source": [
+    "number_of_orders = len(customer_orders)\n",
+    "print(number_of_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 43,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "60.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "percentage_of_products_ordered = (number_of_orders / len(products)) * 100\n",
+    "print(percentage_of_products_ordered)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 49,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 60.0 %\n"
+     ]
+    }
+   ],
+   "source": [
+    "order_status = (number_of_orders, percentage_of_products_ordered)\n",
+    "print (\"Total Products Ordered:\", number_of_orders)\n",
+    "print(\"Percentage of Products Ordered:\", percentage_of_products_ordered, \"%\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 67,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 10, 'mug': 10, 'hat': 10, 'book': 10, 'keychain': 10}\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory = {\n",
+    "    \"t-shirt\": quantity_tshirt,\n",
+    "    \"mug\": quantity_mug,\n",
+    "    \"hat\": quantity_hat,\n",
+    "    \"book\": quantity_book,\n",
+    "    \"keychain\": quantity_keychain\n",
+    "}\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 69,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Invetory after {'t-shirt': -1, 'mug': -1, 'hat': -1, 'book': -1, 'keychain': -1}\n"
+     ]
+    }
+   ],
+   "source": [
+    "for product in inventory:\n",
+    "    inventory[product]= -1\n",
+    "print(\"Invetory after\", inventory)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "jp-MarkdownHeadingCollapsed": true
+   },
    "source": [
     "## Exercise: Managing Customer Orders\n",
     "\n",
@@ -68,7 +260,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,