diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..aec20bf 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,235 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 58,
+   "id": "a4441357",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "['mug', 'hat', 'book']\n",
+      "{'mug': 10, 'hat': 20, 'book': 30}\n"
+     ]
+    }
+   ],
+   "source": [
+    "product = input('Enter the name of product: ')\n",
+    "product_list = []\n",
+    "\n",
+    "while product: \n",
+    "    product_list.append(product)\n",
+    "    request = input ('Do you want to add another product: Yes / No: ')\n",
+    "    request = request.lower()\n",
+    "    if request == 'yes':\n",
+    "        product = input('Enter the name of product:')\n",
+    "    else:\n",
+    "        break\n",
+    "\n",
+    "print(product_list)\n",
+    "\n",
+    "def initialize_inventory(products):\n",
+    "    result = {}\n",
+    "    for product in products:\n",
+    "        unit = int(input('Enter the unit of' + ' ' + product))\n",
+    "        result[product] = unit\n",
+    "    \n",
+    "    return result\n",
+    "\n",
+    "  \n",
+    "\n",
+    "inventory_dic = initialize_inventory(product_list)       \n",
+    "print (inventory_dic)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 59,
+   "id": "871f2d8d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'book', 'hat'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "def get_customer_orders():\n",
+    "    result = set()\n",
+    "    product = input('Enter the name of product: ')\n",
+    "    while product: \n",
+    "        result.add(product)\n",
+    "        request = input ('Do you want to add another product: Yes / No: ')\n",
+    "        request = request.lower()\n",
+    "        if request == 'yes':\n",
+    "            product = input('Enter the name of product:')\n",
+    "        else:\n",
+    "            break\n",
+    "\n",
+    "    return (result)\n",
+    " \n",
+    "customer_orders = get_customer_orders()\n",
+    "print(customer_orders)\n",
+    "\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 74,
+   "id": "d073db7c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'mug': 10, 'hat': 18, 'book': 28}\n"
+     ]
+    }
+   ],
+   "source": [
+    "## 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",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for order in customer_orders:\n",
+    "        if order in inventory:\n",
+    "            inventory[order] = inventory[order] - 1\n",
+    "        \n",
+    "    return inventory\n",
+    "\n",
+    "updated_inventory = update_inventory (customer_orders, inventory_dic)\n",
+    "print(updated_inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 67,
+   "id": "fdc24099",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(2, 66.66666666666666)\n"
+     ]
+    }
+   ],
+   "source": [
+    "## 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",
+    "def calculate_order_statistics (customer_orders, products):\n",
+    "    total_order = len(customer_orders)\n",
+    "    percentage = total_order / len(products) * 100\n",
+    "    return(total_order, percentage)\n",
+    "\n",
+    "order_statistics = calculate_order_statistics(customer_orders, product_list)\n",
+    "print(order_statistics)\n",
+    "\n",
+    "    \n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 70,
+   "id": "2b03ec8d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Total order: 2\n",
+      "Percentage 66.66666666666666\n"
+     ]
+    }
+   ],
+   "source": [
+    "##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",
+    "def print_order_statistics(order_statistics): \n",
+    "    print('Total order:', order_statistics[0])\n",
+    "    print('Percentage', order_statistics[1] )\n",
+    "\n",
+    "print_order_statistics(order_statistics)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 77,
+   "id": "6413b752",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "mug 10\n",
+      "hat 18\n",
+      "book 28\n"
+     ]
+    }
+   ],
+   "source": [
+    "##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",
+    "def print_updated_inventory (inventory): \n",
+    "    for name in inventory:\n",
+    "        print(name, inventory[name])\n",
+    "\n",
+    "print_updated_inventory(updated_inventory)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 78,
+   "id": "51e905a0",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'mug': 33, 'hat': 56, 'book': 22}\n",
+      "{'book', 'hat'}\n",
+      "{'mug': 33, 'hat': 55, 'book': 21}\n",
+      "(2, 66.66666666666666)\n",
+      "Total order: 2\n",
+      "Percentage 66.66666666666666\n",
+      "mug 33\n",
+      "hat 55\n",
+      "book 21\n"
+     ]
+    }
+   ],
+   "source": [
+    "##7. Call the functions in the appropriate sequence to execute the program and manage customer orders.\n",
+    "\n",
+    "inventory_dic = initialize_inventory(product_list)       \n",
+    "print (inventory_dic)\n",
+    "customer_orders = get_customer_orders()\n",
+    "print(customer_orders)\n",
+    "updated_inventory = update_inventory (customer_orders, inventory_dic)\n",
+    "print(updated_inventory)\n",
+    "order_statistics = calculate_order_statistics(customer_orders, product_list)\n",
+    "print(order_statistics)\n",
+    "print_order_statistics(order_statistics)\n",
+    "print_updated_inventory(updated_inventory)\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +285,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,