diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..59d061a 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,187 @@
     "\n",
     "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "id": "be666ab6",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "inventory = {} # empty dictionary"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "2bacc7d8",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 6, 'mug': 4, 'hat': 8, 'book': 5, 'keychain': 7}\n"
+     ]
+    }
+   ],
+   "source": [
+    "inventory[products[0]] = int(input(\"Enter the amount of t-shirts: \"))\n",
+    "inventory[products[1]] = int(input(\"Enter the amount of mugs: \"))\n",
+    "inventory[products[2]] = int(input(\"Enter the amount of hats: \"))\n",
+    "inventory[products[3]] = int(input(\"Enter the amount of books: \"))\n",
+    "inventory[products[4]] = int(input(\"Enter the amount of keychains: \"))\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5d5088d9",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Your order:  {'hat', 'book', 't-shirt'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "customer_orders = set() # empty set\n",
+    "add_more = 'yes' # adding a condition for the loop\n",
+    "while add_more == 'yes':\n",
+    "    product = input(\"Enter the product you want to order: \")\n",
+    "    if product not in products:\n",
+    "        print(\"product not found, try again\")  # added repetition till the product is chosen from the list\n",
+    "    else:\n",
+    "        customer_orders.add(product) \n",
+    "    add_more = input(\"Do you want to order more: yes/no ?\")\n",
+    "print(\"Your order: \", customer_orders)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "5f7aeafb",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "3\n",
+      "5\n",
+      "60.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "products_ordered = len(customer_orders)\n",
+    "print(products_ordered)\n",
+    "\n",
+    "avaliable_products = len(products)\n",
+    "print(avaliable_products)\n",
+    "\n",
+    "percentage = (products_ordered/avaliable_products)*100\n",
+    "print(percentage)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "034b1461",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Order status:  ('ordered products:', 3, 'products avaliable:', 5)\n"
+     ]
+    }
+   ],
+   "source": [
+    "order_status = (\"ordered products:\", products_ordered, \"products avaliable:\", avaliable_products)\n",
+    "print(\"Order status: \", order_status)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "b66a9227",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 6, 'mug': 4, 'hat': 8, 'book': 5, 'keychain': 7}\n",
+      "{'hat', 'book', 't-shirt'}\n",
+      "dict_keys(['t-shirt', 'mug', 'hat', 'book', 'keychain'])\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(inventory)\n",
+    "print(customer_orders)\n",
+    "print(inventory.keys())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "413deea2",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'t-shirt': 5, 'mug': 4, 'hat': 7, 'book': 4, 'keychain': 7}\n"
+     ]
+    }
+   ],
+   "source": [
+    "for product in customer_orders:\n",
+    "    if product in inventory and inventory[product] > 0:\n",
+    "        inventory[product] -= 1\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "ecb4141c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Updated inventory:\n",
+      "t-shirt: 5\n",
+      "mug: 4\n",
+      "hat: 7\n",
+      "book: 4\n",
+      "keychain: 7\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Updated inventory:\")\n",
+    "for position, amount in inventory.items():\n",
+    "    print(position + \": \" + str(amount))"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +231,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,