diff --git a/lab-python-data-structures.ipynb b/lab-python-data-structures.ipynb
index 5b3ce9e0..14ed002b 100644
--- a/lab-python-data-structures.ipynb
+++ b/lab-python-data-structures.ipynb
@@ -50,6 +50,264 @@
     "\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": 53,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "inventory={}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 55,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "how many t-shirts ? 5\n",
+      "how many mugs ? 3\n",
+      "how many hats ? 12\n",
+      "how many books ? 23\n",
+      "how many keychains ? 4\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 5, 'mug': 3, 'hat': 12, 'book': 23, 'keychain': 4}\n"
+     ]
+    }
+   ],
+   "source": [
+    "for i in range(len(products)):\n",
+    "    inventory[products[i]]=int(input('how many ' + products[i] + 's?'))\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 56,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "customer_orders=set()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 87,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Choose a product from ['t-shirt', 'mug', 'hat', 'book', 'keychain'] hat\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'hat'}\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Choose a product from ['t-shirt', 'mug', 'book', 'keychain'] mug\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'hat', 'mug'}\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Choose a product from ['t-shirt', 'book', 'keychain'] book\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'hat', 'mug', 'book'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# options=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "# customer_orders=set()\n",
+    "# for i in range(3):\n",
+    "#     choice= input('Choose a product from ' + str(options))\n",
+    "#     if choice in options:\n",
+    "#         customer_orders.add(choice)\n",
+    "#         options.remove(choice)\n",
+    "#         print(customer_orders)\n",
+    "#     else:\n",
+    "#         choice= input('Choose only a product from the list ' + str(options))\n",
+    "#         customer_orders.append(choice)\n",
+    "#         options.remove(choice)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 100,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Choose a product from ['t-shirt', 'mug', 'hat', 'book', 'keychain'] shoes\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Not a valid item\n"
+     ]
+    },
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Choose a product from ['t-shirt', 'mug', 'hat', 'book', 'keychain'] book\n",
+      "Choose a product from ['t-shirt', 'mug', 'hat', 'keychain'] hat\n",
+      "Choose a product from ['t-shirt', 'mug', 'keychain'] mug\n"
+     ]
+    }
+   ],
+   "source": [
+    "options=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "customer_orders=set()\n",
+    "while len(customer_orders)!=3:\n",
+    "    choice= input('Choose one product from ' + str(options))\n",
+    "    if choice in options:\n",
+    "        customer_orders.add(choice)\n",
+    "        options.remove(choice)\n",
+    "        #print(customer_orders)\n",
+    "    else:\n",
+    "        print('Not a valid item, try again')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 88,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'hat', 'mug', 'book'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 104,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#print('Order Statistics')\n",
+    "total_number_products=len(customer_orders)\n",
+    "total=sum(inventory.values())\n",
+    "#for i in products:\n",
+    " #   total=total+inventory[i]\n",
+    "percentage_ordered=round(3/total*100,1)\n",
+    "#print(f\"Total Products Ordered: {total_number_products}\")\n",
+    "#print(f\"Percentage of Products Ordered: {percentage_ordered}%\" )\n",
+    "order_status=('Total Products Ordered:',total_number_products,'Percentage of Products Ordered:',percentage_ordered)\n",
+    "#print(order_status)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 105,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order Statistics\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 9.1%\n"
+     ]
+    }
+   ],
+   "source": [
+    "print('Order Statistics')\n",
+    "#total_number_products=len(customer_orders)\n",
+    "#total=0\n",
+    "#for i in products:\n",
+    "#    total=total+inventory[i]\n",
+    "#percentage_ordered=round(3/total*100,1)\n",
+    "print(f\"Total Products Ordered: {total_number_products}\")\n",
+    "print(f\"Percentage of Products Ordered: {percentage_ordered}%\" )\n",
+    "#order_status=('Total Products Ordered:',total_number_products,'Percentage of Products Ordered:',percentage_ordered)\n",
+    "#print(order_status)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 113,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "for i in products: #customer_orders:\n",
+    "    if inventory[i]!=0:\n",
+    "        inventory[i]-=1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 111,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "There are 4 t-shirts\n",
+      "There are -1 mugs\n",
+      "There are 8 hats\n",
+      "There are 19 books\n",
+      "There are 3 keychains\n"
+     ]
+    }
+   ],
+   "source": [
+    "for key,value in inventory.items():\n",
+    "    print(f\"There are {value} {key}s\")"
+   ]
   }
  ],
  "metadata": {
@@ -68,7 +326,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.9"
   }
  },
  "nbformat": 4,