diff --git a/lab-python-list-comprehension.ipynb b/lab-python-list-comprehension.ipynb
index 6bef7fd..3c8bf84 100644
--- a/lab-python-list-comprehension.ipynb
+++ b/lab-python-list-comprehension.ipynb
@@ -71,12 +71,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 16,
    "id": "21625526-3fae-4c55-bab5-f91940070681",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "['Open', 'Open', 'Senior', 'Open', 'Open', 'Senior']"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "# your code goes here\n",
+    "input =  [[18, 20], [45, 2], [61, 12], [37, 6], [21, 21], [78, 9]]\n",
+    "output = [\"Senior\" if age > 55 and handicap > 7 else \"Open\" for age, handicap in input]\n",
+    "list(output)"
    ]
   },
   {
@@ -95,12 +109,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 22,
    "id": "53061dce-7aa3-4476-8b56-71413c5e135c",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "23"
+      ]
+     },
+     "execution_count": 22,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "def weird_factorial(number):\n",
+    "    return sum(x for x in range(number) if (x % 3 == 0) or (x % 5 == 0))\n",
+    "\n",
+    "weird_factorial(10)"
    ]
   },
   {
@@ -127,12 +155,27 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 39,
    "id": "a8cb1579-7065-4fc0-bd53-f91c2ad1dad9",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[1, 2, 3]"
+      ]
+     },
+     "execution_count": 39,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "# your code goes here\n",
+    "def split_to_digits(number):\n",
+    "    return [int(x) for x in str(number)]\n",
+    "\n",
+    "split_to_digits(123)"
    ]
   },
   {
@@ -158,9 +201,23 @@
    "execution_count": null,
    "id": "86ebe759-76d8-4012-8590-c48a473a6099",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 41,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "def invert(numbers):\n",
+    "    return [-x for x in numbers]\n",
+    "\n",
+    "invert([1,2,3,4,5,-6])"
    ]
   },
   {
@@ -193,12 +250,37 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 43,
    "id": "6711881b-450a-44cb-a3d0-367b2c6a4464",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{1: 1,\n",
+       " 2: 4,\n",
+       " 3: 9,\n",
+       " 4: 16,\n",
+       " 5: 25,\n",
+       " 6: 36,\n",
+       " 7: 49,\n",
+       " 8: 64,\n",
+       " 9: 81,\n",
+       " 10: 100,\n",
+       " 11: 121,\n",
+       " 12: 144,\n",
+       " 13: 169,\n",
+       " 14: 196,\n",
+       " 15: 225}"
+      ]
+     },
+     "execution_count": 43,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "{item: item**2 for item in range(1, 16)}"
    ]
   },
   {
@@ -220,12 +302,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 47,
    "id": "a1d55cea-96c3-4853-8220-17c0904a8816",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[(1, 3), (1, 4), (2, 3), (2, 4)]"
+      ]
+     },
+     "execution_count": 47,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "list1 = [1,2]\n",
+    "list2 = [3,4]\n",
+    "[(x, y) for x in list1 for y in list2]"
    ]
   },
   {
@@ -249,9 +344,21 @@
    "execution_count": null,
    "id": "0175239c-87fa-4ba0-8776-d62567256db7",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('a', 1), ('a', 2), ('b', 3), ('b', 4)]"
+      ]
+     },
+     "execution_count": 52,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "a = {\"a\": [1, 2], \"b\": [3, 4]}\n",
+    "[(x, y) for x in a.keys() for y in a[x]]"
    ]
   },
   {
@@ -284,9 +391,22 @@
    "execution_count": null,
    "id": "248918d0-f082-40a8-9d5c-c7b4ffd2bfca",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[(1, 3), (1, 4), (2, 3), (2, 4), (5, 7), (5, 8), (6, 7), (6, 8)]"
+      ]
+     },
+     "execution_count": 60,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code goes here"
+    "inp = [([1, 2], [3, 4]), ([5, 6], [7, 8])]\n",
+    "\n",
+    "[(x, y) for tupl in inp for x in tupl[0] for y in tupl[1]]"
    ]
   },
   {
@@ -308,18 +428,38 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 61,
    "id": "c57d9e77-6859-45dd-a2e6-2c1898f1baa2",
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('a', 'c'), ('a', 'd'), ('b', 'c'), ('b', 'd')]"
+      ]
+     },
+     "execution_count": 61,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "a = [\"ab\", \"cd\"]\n",
+    "[(second[0], first[1]) for first in a for second in a]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "7204eace",
+   "metadata": {},
    "source": [
-    "# your code goes here"
+    "Their solution is wrong!! "
    ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "ironhack_prework",
    "language": "python",
    "name": "python3"
   },
@@ -333,7 +473,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.11.14"
   }
  },
  "nbformat": 4,