diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..363423d 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -1,47 +1,236 @@
 {
  "cells": [
   {
-   "cell_type": "markdown",
-   "id": "25d7736c-ba17-4aff-b6bb-66eba20fbf4e",
+   "cell_type": "code",
+   "execution_count": 49,
+   "id": "7b4be6cf-fbfb-4ec7-b73f-d9285956d910",
    "metadata": {},
+   "outputs": [],
    "source": [
-    "# Lab | Functions"
+    "products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']"
    ]
   },
   {
-   "cell_type": "markdown",
-   "id": "0c581062-8967-4d93-b06e-62833222f930",
-   "metadata": {
-    "tags": []
-   },
+   "cell_type": "code",
+   "execution_count": 34,
+   "id": "a0521e39-dc55-4c85-8e9c-95334a0d3d8c",
+   "metadata": {},
+   "outputs": [],
    "source": [
-    "## Exercise: Managing Customer Orders with Functions\n",
-    "\n",
-    "In the previous exercise, you improved the code for managing customer orders by using loops and flow control. Now, let's take it a step further and refactor the code by introducing functions.\n",
-    "\n",
-    "Follow the steps below to complete the exercise:\n",
-    "\n",
-    "1. Define a function named `initialize_inventory` that takes `products` as a parameter. Inside the function, implement the code for initializing the inventory dictionary using a loop and user input.\n",
-    "\n",
-    "2. Define a function named `get_customer_orders` that takes no parameters. Inside the function, implement the code for prompting the user to enter the product names using a loop. The function should return the `customer_orders` set.\n",
-    "\n",
-    "3. Define a function named `update_inventory` that takes `customer_orders` and `inventory` as parameters. Inside the function, implement the code for updating the inventory dictionary based on the customer orders.\n",
-    "\n",
-    "4. Define a function named `calculate_order_statistics` that takes `customer_orders` and `products` as parameters. Inside the function, implement the code for calculating the order statistics (total products ordered, and percentage of unique products ordered). The function should return these values.\n",
-    "\n",
-    "5. Define a function named `print_order_statistics` that takes `order_statistics` as a parameter. Inside the function, implement the code for printing the order statistics.\n",
-    "\n",
-    "6. Define a function named `print_updated_inventory` that takes `inventory` as a parameter. Inside the function, implement the code for printing the updated inventory.\n",
-    "\n",
-    "7. Call the functions in the appropriate sequence to execute the program and manage customer orders.\n",
-    "\n",
-    "Hints for functions:\n",
-    "\n",
-    "- Consider the input parameters required for each function and their return values.\n",
-    "- Utilize function parameters and return values to transfer data between functions.\n",
-    "- Test your functions individually to ensure they work correctly.\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        count = int(input(f'How many {product}s are there in the warehouse? '))\n",
+    "        inventory[product] = count\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 50,
+   "id": "3276d713-17f1-4948-b422-9450ced7cd0d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "How many t-shirts are there in the warehouse?  50\n",
+      "How many mugs are there in the warehouse?  40\n",
+      "How many hats are there in the warehouse?  30\n",
+      "How many books are there in the warehouse?  60\n",
+      "How many keychains are there in the warehouse?  45\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory = initialize_inventory(products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 51,
+   "id": "342d430b-563b-429c-be6a-faa8ab64120c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Inventory: {'t-shirt': 50, 'mug': 40, 'hat': 30, 'book': 60, 'keychain': 45}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Inventory:\", inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 52,
+   "id": "8de79e2a-910c-4cb7-b414-291b1d2ee614",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "    while True:\n",
+    "        product = input(\"Enter the name of a product you want to order: \").strip().lower()\n",
+    "        customer_orders.add(product)\n",
     "\n",
-    "\n"
+    "        more = input(\"Do you want to add another product? (yes/no): \").strip().lower()\n",
+    "        if more != 'yes':\n",
+    "            break\n",
+    "    return customer_orders"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 53,
+   "id": "6acd5ee6-948c-4b5e-ae55-31269b5eac63",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter the name of a product you want to order:  t-shirt\n",
+      "Do you want to add another product? (yes/no):  yes\n",
+      "Enter the name of a product you want to order:  book\n",
+      "Do you want to add another product? (yes/no):  yes\n",
+      "Enter the name of a product you want to order:  mug\n",
+      "Do you want to add another product? (yes/no):  no\n"
+     ]
+    }
+   ],
+   "source": [
+    "customer_orders = get_customer_orders()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 54,
+   "id": "1c3764ea-c90a-45d6-8c10-b8d2b9b6ab3a",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Customer Orders: {'mug', 'book', 't-shirt'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Customer Orders:\", customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 55,
+   "id": "f492249a-64fa-4c00-8606-4e0bf8ac3138",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_order_stats(customer_orders, products):\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_of_products_ordered = (total_ordered / len(products)) * 100\n",
+    "    return total_products_ordered, int(percentage_of_products_ordered)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 56,
+   "id": "beb2e5f0-bc3e-4375-aa2a-7bdb757b1516",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def update_inventory(inventory, customer_orders):\n",
+    "    for item in customer_orders:\n",
+    "        if item in inventory and inventory[item] > 0:\n",
+    "            inventory[item] -= 1\n",
+    "    return inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 57,
+   "id": "38dcb295-f38d-4eed-8e62-b0f7a815b418",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "inventory = update_inventory(inventory, customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 58,
+   "id": "911f8df4-280c-4cb0-8680-83a22516582c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Updated Inventory: {'t-shirt': 49, 'mug': 39, 'hat': 30, 'book': 59, 'keychain': 45}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Updated Inventory:\", inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 59,
+   "id": "102eed2e-153d-49fc-b206-10fa3226be98",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def print_order_stats(total_products_ordered, percentage_of_products_ordered):\n",
+    "    print(\"Order Statistics:\")\n",
+    "    print(\"Total Products Ordered:\", total_products_ordered)\n",
+    "    print(\"Percentage of Products Ordered:\", int(percentage_of_products_ordered), \"%\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 62,
+   "id": "1aa1fe84-9a0f-49c7-98eb-5328f6b2209c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated Inventory:\")\n",
+    "    for product, quantity in inventory.items():\n",
+    "        print(f\"{product}: {quantity}\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 63,
+   "id": "c088e48b-4e8d-486c-9f51-f985595e4490",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order Statistics:\n",
+      "Total Products Ordered: 3\n",
+      "Percentage of Products Ordered: 60 %\n",
+      "Updated Inventory:\n",
+      "t-shirt: 49\n",
+      "mug: 39\n",
+      "hat: 30\n",
+      "book: 59\n",
+      "keychain: 45\n"
+     ]
+    }
+   ],
+   "source": [
+    "print_order_stats(total_products_ordered, percentage_of_products_ordered)\n",
+    "print_updated_inventory(inventory)"
    ]
   }
  ],
@@ -61,7 +250,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.3"
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