diff --git a/lab-python-oop.ipynb b/lab-python-oop.ipynb
index c13bc58..b58be7e 100644
--- a/lab-python-oop.ipynb
+++ b/lab-python-oop.ipynb
@@ -56,13 +56,35 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "id": "21625526-3fae-4c55-bab5-f91940070681",
    "metadata": {},
    "outputs": [],
    "source": [
     "# your code goes here\n",
-    "\n"
+    "\n",
+    "class BankAccount:\n",
+    "    account_count = 0  # Atributo de clase\n",
+    "\n",
+    "    def _init_(self, balance=0):\n",
+    "        self.balance = balance\n",
+    "        BankAccount.account_count += 1\n",
+    "        self.account_number = BankAccount.account_count\n",
+    "\n",
+    "    def deposit(self, amount):\n",
+    "        self.balance += amount\n",
+    "\n",
+    "    def withdraw(self, amount):\n",
+    "        if amount <= self.balance:\n",
+    "            self.balance -= amount\n",
+    "        else:\n",
+    "            print(\"Insufficient balance\")\n",
+    "\n",
+    "    def get_balance(self):\n",
+    "        return self.balance\n",
+    "\n",
+    "    def get_account_number(self):\n",
+    "        return self.account_number"
    ]
   },
   {
@@ -117,12 +139,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 4,
    "id": "4f8848b5-05d3-4259-9e24-914537926778",
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code goes here"
+    "# your code goes hereclass SavingsAccount(BankAccount):\n",
+    "def _init_(self, balance=0, interest_rate=0.01):\n",
+    "        super()._init_(balance)  # heredamos el init de BankAccount\n",
+    "        self.interest_rate = interest_rate\n",
+    "    \n",
+    "def add_interest(self):\n",
+    "        interest = self.balance * self.interest_rate\n",
+    "        self.balance += interest\n",
+    "    \n",
+    "def get_interest_rate(self):\n",
+    "        return self.interest_rate"
    ]
   },
   {
@@ -149,16 +181,6 @@
     "    Interest rate: 0.02"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "bccc7f6d-d58c-4909-9314-aaf4afc1cd30",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# your code goes here"
-   ]
-  },
   {
    "cell_type": "markdown",
    "id": "a5455a88-a8d1-47a6-86b0-7c70647b4f31",
@@ -189,12 +211,42 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "id": "3c883c6e-3cb8-4043-92d3-12409668a28e",
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code goes here"
+    "# your code goes hereclass CheckingAccount(BankAccount):\n",
+    "def _init_(self, balance=0, transaction_fee=0.01):\n",
+    "        super()._init_(balance)\n",
+    "        self.transaction_fee = transaction_fee\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def deposit(self, amount):\n",
+    "        super().deposit(amount)\n",
+    "        self.transaction_count += 1\n",
+    "\n",
+    "def withdraw(self, amount):\n",
+    "        if amount <= self.balance:\n",
+    "            super().withdraw(amount)\n",
+    "            self.transaction_count += 1\n",
+    "        else:\n",
+    "            print(\"Insufficient balance\")\n",
+    "\n",
+    "def deduct_fees(self):\n",
+    "        total_fees = self.balance * self.transaction_fee * self.transaction_count\n",
+    "        if total_fees <= self.balance:\n",
+    "            self.balance -= total_fees\n",
+    "            print(f\"Deducted: {total_fees}\")\n",
+    "        else:\n",
+    "            print(\"Insufficient balance to cover fees\")\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def reset_transaction_count(self):\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def get_transaction_count(self):\n",
+    "        return self.transaction_count"
    ]
   },
   {
@@ -234,18 +286,48 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 6,
    "id": "faa5b148-c11b-4be0-b810-de8a7da81451",
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code goes here"
+    "# your code goes hereclass CheckingAccount(BankAccount):\n",
+    "def _init_(self, balance=0, transaction_fee=2):\n",
+    "        super()._init_(balance)\n",
+    "        self.transaction_fee = transaction_fee  # fee fijo, no porcentaje\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def deposit(self, amount):\n",
+    "        super().deposit(amount)\n",
+    "        self.transaction_count += 1\n",
+    "\n",
+    "def withdraw(self, amount):\n",
+    "        if amount <= self.balance:\n",
+    "            super().withdraw(amount)\n",
+    "            self.transaction_count += 1\n",
+    "        else:\n",
+    "            print(\"Insufficient balance\")\n",
+    "\n",
+    "def deduct_fees(self):\n",
+    "        total_fees = self.transaction_fee * self.transaction_count\n",
+    "        if total_fees <= self.balance:\n",
+    "            self.balance -= total_fees\n",
+    "            print(f\"Transaction fees of ${total_fees} have been deducted from your account balance.\")\n",
+    "        else:\n",
+    "            print(\"Insufficient balance to cover transaction fees.\")\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def reset_transaction_count(self):\n",
+    "        self.transaction_count = 0\n",
+    "\n",
+    "def get_transaction_count(self):\n",
+    "        return self.transaction_count"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -259,7 +341,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.0a6"
   }
  },
  "nbformat": 4,