diff --git a/lab-python-list-comprehension.ipynb b/lab-python-list-comprehension.ipynb
index 5a3c3e1..96d07b1 100644
--- a/lab-python-list-comprehension.ipynb
+++ b/lab-python-list-comprehension.ipynb
@@ -18,7 +18,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5d500160-2fb7-4777-b5e4-09d45ebaf328",
+   "id": "f4735399-1e52-4684-9263-6a6e372ddb30",
    "metadata": {},
    "source": [
     "In the previous exercise, you developed a program to manage customer orders and inventory. Now, let's take it a step further and incorporate comprehension into your code.\n",
@@ -75,6 +75,245 @@
     "\n",
     "```\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "32a09ad5-391d-4e5f-8faf-90917cd20db4",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 97,
+   "id": "3abb2f5c-b8d4-421e-8267-4ddf91e97086",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter quantity of bags available:  20\n",
+      "Enter quantity of shoes available:  30\n"
+     ]
+    }
+   ],
+   "source": [
+    "def initialize_inventory(products):\n",
+    "    inventory = {i: int(input(f\"Enter quantity of {i}s available: \")) for i in products}\n",
+    "    return inventory\n",
+    "inventory=initialize_inventory(products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 41,
+   "id": "0b338688-f62f-429b-b5d4-56f996367f63",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products=[\"bag\",\"shoe\"]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 187,
+   "id": "ecc3f083-05a3-46aa-984a-2180d4ef1af8",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter no of customer orders:  1\n",
+      "Enter the name of a product that a customer wants to order:  mug\n"
+     ]
+    }
+   ],
+   "source": [
+    " def get_customer_orders():\n",
+    "    customer_orders = list()\n",
+    "    number_of_orders=int(input(\"Enter no of customer orders: \"))\n",
+    "    for i in range(number_of_orders):\n",
+    "        name = input(\"Enter the name of a product that a customer wants to order: \")\n",
+    "        customer_orders.append(name)\n",
+    "    order={i for i in customer_orders if i in products}\n",
+    "    return order\n",
+    "    \n",
+    "customer_order= list(get_customer_orders())\n",
+    "      "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 181,
+   "id": "184d8e83-fc03-48fd-a528-0d0671dc1f0a",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Enter the product name or 'complete' to finish:  shoe\n",
+      "do you want to enter another product (yes/no):  yes\n",
+      "Enter the product name or 'complete' to finish:  bag\n",
+      "do you want to enter another product (yes/no):  no\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "{'bag', 'shoe'}"
+      ]
+     },
+     "execution_count": 181,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "get_customer_orders()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6d616f01-f0d2-4b06-aa37-3aa515aafb95",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 178,
+   "id": "fcd551a7-78f4-4419-a25a-37e0b78fc561",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def total_price():\n",
+    "    order_dict={i:int(input(f\"Price of {i}: \")) for i in customer_order}\n",
+    "    order_dict.items()\n",
+    "    b=sum(order_dict.values())\n",
+    "    print(f\"The total product price is {b}\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 179,
+   "id": "a0ed8738-8b6e-42bd-9557-0e369346cc29",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Price of shoe:  20\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The total product price is 20\n"
+     ]
+    }
+   ],
+   "source": [
+    "total_price()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 80,
+   "id": "35fa7852-c65c-47f9-9fe0-0dbb60ab1b76",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "function"
+      ]
+     },
+     "execution_count": 80,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "type(total_price)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 175,
+   "id": "abe71b65-ad08-450a-bffe-b2f62ab716be",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def update_inventory(customer_order, inventory):\n",
+    "    for i in customer_order:\n",
+    "        if i in inventory:\n",
+    "            inventory[i]-=1        \n",
+    "    inventory_final={j:k for j,k in inventory.items() if inventory[j]>0}\n",
+    "    return inventory_final\n",
+    "customer_order=update_inventory(customer_order, inventory)\n",
+    "\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 169,
+   "id": "8ad47809-0c78-4352-a6f8-1193a5f1a70f",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'shoe': 3}"
+      ]
+     },
+     "execution_count": 169,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 177,
+   "id": "508895fb-4e1b-4fcd-b6d3-145593687082",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdin",
+     "output_type": "stream",
+     "text": [
+      "Price of shoe:  2\n"
+     ]
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The total product price is 2\n"
+     ]
+    }
+   ],
+   "source": [
+    "total_price()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "994641c0-4be7-4400-b8ea-7f2897653d9d",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -93,7 +332,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,