diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..3768c71 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,120 @@
     "\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": 16,
+   "id": "877bb818",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Paso 1: productos disponibles\n",
+    "products = [\"camisetas\", \"mug\", \"gorras\", \"libros\", \"llaveros\"]\n",
+    "\n",
+    "# Paso 2: inventario\n",
+    "inventory = {}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "b45abc05",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Introduce el stock de cada producto:\n",
+      "{'camisetas': 20, 'mug': 10, 'gorras': 30, 'libros': 50, 'llaveros': 50}\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(\"Introduce el stock de cada producto:\")\n",
+    "for product in products:\n",
+    "    quantity = int(input(f\"{product}: \"))\n",
+    "    inventory[product] = quantity\n",
+    "\n",
+    "# Paso 3: set de pedidos\n",
+    "customer_orders = set()\n",
+    "print(inventory)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "id": "0eb94716",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Producto inválido. Usa uno de estos: ['camisetas', 'mug', 'gorras', 'libros', 'llaveros']\n",
+      "\n",
+      "Productos pedidos:\n",
+      "{'llaveros', 'camisetas', 'gorras'}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Paso 4: pedir productos usando bucle\n",
+    "while True:\n",
+    "    product = input(\"Ingresa el nombre del producto que deseas ordenar: \").lower()\n",
+    "\n",
+    "    if product in products:\n",
+    "        customer_orders.add(product)\n",
+    "    else:\n",
+    "        print(\"Producto inválido. Usa uno de estos:\", products)\n",
+    "        continue\n",
+    "\n",
+    "    another = input(\"¿Deseas agregar otro producto? (si/no): \").lower()\n",
+    "\n",
+    "    if another not in (\"si\", \"sí\", \"s\"):\n",
+    "        break\n",
+    "\n",
+    "# Paso 5: mostrar productos pedidos\n",
+    "print(\"\\nProductos pedidos:\")\n",
+    "print(customer_orders)\n",
+    "\n",
+    "# Paso 6: actualizar inventario SOLO de productos pedidos\n",
+    "for product in customer_orders:\n",
+    "    inventory[product] -= 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "7ed6fc16",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "Inventario actualizado:\n",
+      "camisetas : 19\n",
+      "mug : 10\n",
+      "gorras : 29\n",
+      "libros : 50\n",
+      "llaveros : 49\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Paso 7: mostrar inventario actualizado\n",
+    "print(\"\\nInventario actualizado:\")\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(product, \":\", quantity)"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +164,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.0"
   }
  },
  "nbformat": 4,