diff --git a/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb b/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb
index b65ffd1..f08a661 100644
--- a/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb
+++ b/your-code/.ipynb_checkpoints/challenge-1-checkpoint.ipynb
@@ -15,7 +15,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -34,23 +34,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "tuple"
-      ]
-     },
-     "execution_count": 2,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "# Your code here\n",
-    "type(tup)"
+    "# Your code here\n"
    ]
   },
   {
@@ -68,26 +56,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "ename": "AttributeError",
-     "evalue": "'tuple' object has no attribute 'append'",
-     "output_type": "error",
-     "traceback": [
-      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
-      "\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
-      "\u001b[0;32m<ipython-input-3-79d5a2bcc9c1>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;31m# Your code here\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mtup\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"r\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      3\u001b[0m \u001b[0;31m# Your explanation here\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      4\u001b[0m \u001b[0;31m# tuple is immutable\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
-      "\u001b[0;31mAttributeError\u001b[0m: 'tuple' object has no attribute 'append'"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Your code here\n",
-    "tup.append(\"r\")\n",
-    "# Your explanation here\n",
-    "# tuple is immutable"
+    "\n",
+    "# Your explanation here\n"
    ]
   },
   {
@@ -110,9 +85,8 @@
    "outputs": [],
    "source": [
     "# Your code here\n",
-    "tup[0] = \"r\"\n",
-    "# Your explanation here\n",
-    "# tuple is immutable"
+    "\n",
+    "# Your explanation here\n"
    ]
   },
   {
@@ -130,13 +104,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n",
-    "tup1 = (\"I\", \"r\", \"o\", \"n\")\n",
-    "tup2 = (\"h\", \"a\", \"c\", \"k\")"
+    "# Your code here\n"
    ]
   },
   {
@@ -150,26 +122,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n",
-      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n",
-      "True\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
-    "# Your code here\n",
-    "tup = (\"I\", \"r\", \"o\", \"n\", \"h\", \"a\", \"c\", \"k\")\n",
-    "tup3 = tup1 + tup2\n",
-    "print(tup3)\n",
-    "print(tup)\n",
-    "print(tup == tup3)"
+    "# Your code here\n"
    ]
   },
   {
@@ -181,26 +138,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "4\n",
-      "8\n",
-      "8\n",
-      "8\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
-    "# Your code here\n",
-    "print(len(tup1))\n",
-    "print(len(tup3))\n",
-    "print(len(tup1) + len(tup2))\n",
-    "print(len(tup3))"
+    "# Your code here\n"
    ]
   },
   {
@@ -212,24 +154,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "4"
-      ]
-     },
-     "execution_count": 32,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "# Your code here\n",
-    "tup3.index(\"h\")\n",
-    "##It's number 4"
+    "# Your code here\n"
    ]
   },
   {
@@ -249,33 +178,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": null,
    "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "[True, False, True, False, False]\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
-    "letters = [\"a\", \"b\", \"c\", \"d\", \"e\"]\n",
-    "\n",
-    "# Your code here\n",
-    "# with a for loop\n",
-    "#for element in letters:\n",
-    " #   if element in tup3:\n",
-    "  #      print(True)\n",
-    "   # else:\n",
-    "    #    print(False)\n",
-    "#using a list comprehension\n",
-    "\n",
-    "existing_letters = [True if (element in tup3) else False for element in letters ]\n",
-    "\n",
-    "#if element in tup3 print(True) else print(False) \n",
-    "print(existing_letters)\n"
+    "# Your code here\n"
    ]
   },
   {
@@ -293,14 +200,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n",
-    "\n"
+    "# Your code here\n"
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -314,9 +220,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.8"
+   "version": "3.11.7"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }
diff --git a/your-code/challenge-1.ipynb b/your-code/challenge-1.ipynb
index 2e59d77..f08a661 100644
--- a/your-code/challenge-1.ipynb
+++ b/your-code/challenge-1.ipynb
@@ -19,7 +19,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "tup = (\"I\",)"
    ]
   },
   {
@@ -205,7 +206,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -219,9 +220,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.11.7"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }