diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb
index f4c6ef6..b8d89d3 100644
--- a/lab-python-error-handling.ipynb
+++ b/lab-python-error-handling.ipynb
@@ -72,11 +72,158 @@
     "\n",
     "4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected.\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "d544c39a",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Invalid input:invalid literal for int() with base 10: 's'\n",
+      "Sorry, this product is out of stock. Please choose another product.\n",
+      "Products in customer orders: {'hat', 'book'}\n",
+      "Order Statistics\n",
+      "Total Products Ordered: 2\n",
+      "Percentage of Products Ordered: 40.0 %\n",
+      "Updated Inventory:\n",
+      "t-shirt: 2\n",
+      "mug: 1\n",
+      "hat: 3\n",
+      "book: 5\n",
+      "keychain: 0\n",
+      "Total Price: 102.0\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "102.0"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "#1 \n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "#2\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        valid_input = False\n",
+    "        while not valid_input:\n",
+    "            try:\n",
+    "                quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n",
+    "                if quantity >= 0:\n",
+    "                    inventory[product] = quantity\n",
+    "                    valid_input = True\n",
+    "                else:\n",
+    "                    print(\"Quantity cannot be negative. Please enter a valid quantity.\")\n",
+    "            except ValueError:\n",
+    "                print(\"Invalid input. Please enter a valid quantity.\")\n",
+    "    return inventory\n",
+    "#3\n",
+    "def get_customer_orders(inventory):\n",
+    "    customer_orders = set()\n",
+    "    \n",
+    "    while True: \n",
+    "        try:\n",
+    "            num_orders = int(input(\"How many products would you like to order'? \"))\n",
+    "            if num_orders < 0:\n",
+    "                raise ValueError(\"Number of orders cannot be negative.\")\n",
+    "            break\n",
+    "        except ValueError as error:\n",
+    "            print(f\"Invalid input:{error}\")\n",
+    "\n",
+    "    for _ in range(num_orders):\n",
+    "        while True:\n",
+    "            product = input(\"Enter the product you want to order: \").strip().lower()\n",
+    "            if product not in inventory:\n",
+    "                print(\"Product not found in inventory. Please enter a valid product\")\n",
+    "            elif inventory[product] <= 0:\n",
+    "                print(\"Sorry, this product is out of stock. Please choose another product.\")\n",
+    "            else:\n",
+    "                customer_orders.add(product)\n",
+    "                break\n",
+    "   \n",
+    "    \n",
+    "    print(\"Products in customer orders:\", customer_orders)\n",
+    "    return customer_orders\n",
+    "\n",
+    "\n",
+    "#4\n",
+    "def update_inventory(inventory,customer_orders):\n",
+    "    inventory = {item: inventory[item] - 1 if item in customer_orders else inventory[item] for item in inventory}\n",
+    "\n",
+    "    inventory = {item: qty for item, qty in inventory.items() if qty > 0}\n",
+    "    for item, qty in inventory.items():\n",
+    "        print(f\"{item}, Quantity Left: {qty}\")\n",
+    "\n",
+    "    return inventory\n",
+    "\n",
+    "def price_calculator(customer_orders):\n",
+    "    total_price = 0.0\n",
+    "\n",
+    "    for product in customer_orders:\n",
+    "        valid_price = False\n",
+    "        while not valid_price:\n",
+    "            try:\n",
+    "                price = float(input(f\"Enter the price of {product}: \"))\n",
+    "                if price < 0:\n",
+    "                    raise ValueError(\"Price cannot be negative.\")\n",
+    "                total_price += price\n",
+    "                valid_price = True\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Invalid input: {error}\")\n",
+    "\n",
+    "    print(f\"Total Price: {total_price}\")\n",
+    "    return total_price\n",
+    "\n",
+    "\n",
+    "#5\n",
+    "def calculate_order_statistics(customer_orders,products):\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_ordered = (total_products_ordered / len(products)) * 100\n",
+    "    order_status = (total_products_ordered, percentage_ordered)\n",
+    "    return order_status\n",
+    "#6\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    print(\"Order Statistics\")\n",
+    "    print(\"Total Products Ordered:\", order_statistics[0])\n",
+    "    print(\"Percentage of Products Ordered:\", order_statistics[1], \"%\")\n",
+    "#7\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated Inventory:\")\n",
+    "    for item, qty in inventory.items():\n",
+    "        print(f\"{item}: {qty}\")\n",
+    "\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "customer_orders = get_customer_orders(inventory)\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)\n",
+    "print_order_statistics(order_statistics)\n",
+    "print_updated_inventory(inventory)\n",
+    "price_calculator(customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "271ae85e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -90,7 +237,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.2"
   }
  },
  "nbformat": 4,