diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb
index f4c6ef6..40060dc 100644
--- a/lab-python-error-handling.ipynb
+++ b/lab-python-error-handling.ipynb
@@ -72,6 +72,87 @@
     "\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": null,
+   "id": "d152b257",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Define the products list\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "# 1. Initialize Inventory\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {product: int(input(f\"Enter the quantity of {product}s available: \")) for product in products}\n",
+    "    return inventory\n",
+    "\n",
+    "# 2. Get Customer Orders\n",
+    "def get_customer_orders():\n",
+    "    num_orders = int(input(\"Enter the number of customer orders: \"))\n",
+    "    customer_orders = {\n",
+    "        order\n",
+    "        for _ in range(num_orders)\n",
+    "        for order in [input(\"Enter the name of a product that a customer wants to order: \").strip().lower()]\n",
+    "        if order in products or print(f\"Invalid product '{order}'. Please choose from: {', '.join(products)}\") \n",
+    "    }\n",
+    "    return customer_orders\n",
+    "\n",
+    "# 3. Calculate Total Price\n",
+    "def calculate_total_price(customer_orders):\n",
+    "    total_price = sum(float(input(f\"Enter the price of {product}: \")) for product in customer_orders)\n",
+    "    return total_price\n",
+    "\n",
+    "# 4. Update Inventory\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    inventory = {product: inventory[product] - (1 if product in customer_orders else 0) for product in inventory}\n",
+    "    inventory = {product: quantity for product, quantity in inventory.items() if quantity > 0}\n",
+    "    return inventory\n",
+    "\n",
+    "# 5. Calculate Order Statistics\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",
+    "    return (total_products_ordered, percentage_ordered)\n",
+    "\n",
+    "# 6. Print Order Statistics\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    print(f\"\"\"\n",
+    "Order Statistics:\n",
+    "Total Products Ordered: {order_statistics[0]}\n",
+    "Percentage of Unique Products Ordered: {order_statistics[1]}\n",
+    "    \"\"\")\n",
+    "\n",
+    "# 7. Print Updated Inventory\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated Inventory:\")\n",
+    "    [print(f\"{product}: {quantity}\") for product, quantity in inventory.items()]\n",
+    "\n",
+    "# 8. Main Program\n",
+    "\n",
+    "# Step 1: Initialize the inventory\n",
+    "inventory = initialize_inventory(products)\n",
+    "\n",
+    "# Step 2: Get customer orders\n",
+    "customer_orders = get_customer_orders()\n",
+    "\n",
+    "# Step 3: Calculate order statistics\n",
+    "order_statistics = calculate_order_statistics(customer_orders, products)\n",
+    "\n",
+    "# Step 4: Print order statistics\n",
+    "print_order_statistics(order_statistics)\n",
+    "\n",
+    "# Step 5: Update the inventory\n",
+    "inventory = update_inventory(customer_orders, inventory)\n",
+    "\n",
+    "# Step 6: Print the updated inventory\n",
+    "print_updated_inventory(inventory)\n",
+    "\n",
+    "# Step 7: Calculate and print total price\n",
+    "total_price = calculate_total_price(customer_orders)\n",
+    "print(f\"Total Price: {total_price}\")"
+   ]
   }
  ],
  "metadata": {