diff --git a/your-code/challenge-1.ipynb b/your-code/challenge-1.ipynb
index 48f6b46..113e5c0 100644
--- a/your-code/challenge-1.ipynb
+++ b/your-code/challenge-1.ipynb
@@ -15,11 +15,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here"
+    "tup = (\"I\",)"
    ]
   },
   {
@@ -33,11 +33,20 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 12,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<class 'tuple'>\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here"
+    "typ = type(tup)\n",
+    "print(typ)"
    ]
   },
   {
@@ -55,13 +64,36 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 13,
    "metadata": {},
-   "outputs": [],
+   "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-13-71e516e24411>\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[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\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      4\u001b[0m \u001b[0mtup\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"o\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0mtup\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"n\"\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'"
+     ]
+    }
+   ],
    "source": [
     "# Your code here\n",
     "\n",
-    "# Your explanation here\n"
+    "tup.append(\"r\")\n",
+    "tup.append(\"o\")\n",
+    "tup.append(\"n\")\n",
+    "tup.append(\"h\")\n",
+    "tup.append(\"a\")\n",
+    "tup.append(\"c\")\n",
+    "tup.append(\"k\")\n",
+    "\n",
+    "\n",
+    "# Your explanation here\n",
+    "\n",
+    "#Tuples are an inmutable kind of object\n"
    ]
   },
   {
@@ -79,13 +111,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 19,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
    "source": [
     "# Your code here\n",
     "\n",
-    "# Your explanation here\n"
+    "tup = (\"I\", \"r\", \"o\", \"n\", \"h\", \"a\", \"c\", \"k\")\n",
+    "print(tup)\n",
+    "\n",
+    "# Your explanation here\n",
+    "\n",
+    "#Yes, we're able to change it as long as we are redifining the variable"
    ]
   },
   {
@@ -103,11 +148,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 17,
+   "execution_count": 31,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "tup1 is: ('I', 'r', 'o', 'n')\n",
+      "tup2 is: ('h', 'a', 'c', 'k')\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "l=len(tup)\n",
+    "tup1 = tup[:int(a/2)]\n",
+    "tup2 = tup[-int(a/2):]\n",
+    "print(\"tup1 is:\",tup1)\n",
+    "print(\"tup2 is:\",tup2)\n"
    ]
   },
   {
@@ -121,11 +180,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 33,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "('I', 'r', 'o', 'n', 'h', 'a', 'c', 'k')\n",
+      "True\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "tup3 = tup1+tup2\n",
+    "print(tup3)\n",
+    "\n",
+    "check = tup3 == tup\n",
+    "print(check)\n"
    ]
   },
   {
@@ -137,11 +211,27 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 38,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "count1 = len(tup1)\n",
+    "count2 = len(tup2)\n",
+    "count12 = count1+count2\n",
+    "count3 = len(tup3)\n",
+    "\n",
+    "check12_3 = count12 == count3\n",
+    "print(check12_3)\n"
    ]
   },
   {
@@ -153,11 +243,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 39,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "4\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here"
+    "# Your code here\n",
+    "\n",
+    "h_ind = tup3.index(\"h\")\n",
+    "\n",
+    "print(h_ind)"
    ]
   },
   {
@@ -177,11 +279,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 21,
+   "execution_count": 43,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a : True\n",
+      "b : False\n",
+      "c : True\n",
+      "d : False\n",
+      "e : False\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "letters = [\"a\", \"b\", \"c\", \"d\", \"e\"]\n",
+    "\n",
+    "for i in letters:\n",
+    "    if i in tup3:\n",
+    "        print(i,\":\",True)\n",
+    "    else:\n",
+    "        print(i,\":\",False)\n",
+    "\n"
    ]
   },
   {
@@ -195,11 +318,37 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 22,
+   "execution_count": 59,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "a : 1\n",
+      "b : 0\n",
+      "c : 1\n",
+      "d : 0\n",
+      "e : 0\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "\n",
+    "dict_1 = {}\n",
+    "for i in tup3:\n",
+    "    if i in dict_1:\n",
+    "        dict_1[i] += 1\n",
+    "    else:\n",
+    "        dict_1[i] = 1\n",
+    "\n",
+    "for j in letters:\n",
+    "    if j in tup3:\n",
+    "        print(j,\":\",dict_1[j])\n",
+    "    else:\n",
+    "        print(j,\":\",0)     \n"
    ]
   },
   {
@@ -211,12 +360,42 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 67,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "10\n",
+      "11\n",
+      "12\n",
+      "13\n",
+      "14\n",
+      "15\n",
+      "16\n",
+      "17\n",
+      "18\n",
+      "19\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "tupl = (10,20)\n",
+    "(min1,max1) = tupl\n",
+    "\n",
+    "for i in range(min1,max1+1):\n",
+    "    print(i)"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -235,7 +414,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.9.2"
   }
  },
  "nbformat": 4,
diff --git a/your-code/challenge-2.ipynb b/your-code/challenge-2.ipynb
index ef7bde3..3147337 100644
--- a/your-code/challenge-2.ipynb
+++ b/your-code/challenge-2.ipynb
@@ -13,7 +13,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -38,11 +38,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[35, 69, 1, 18, 91, 39, 84, 36, 6, 68, 92, 15, 94, 8, 47, 70, 71, 99, 43, 16, 80, 56, 45, 83, 26, 46, 58, 90, 5, 14, 29, 17, 3, 13, 93, 12, 20, 60, 59, 11, 61, 77, 88, 87, 31, 41, 30, 52, 97, 21, 64, 27, 66, 42, 10, 33, 7, 0, 85, 62, 65, 78, 53, 76, 44, 22, 82, 49, 28, 57, 38, 89, 32, 25, 81, 75, 37, 34, 95, 19]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "sample_list_1 = random.sample(range(100),80)\n",
+    "print(sample_list_1)"
    ]
   },
   {
@@ -54,11 +65,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "80\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "set1 = set(sample_list_1)\n",
+    "l = len(set1)\n",
+    "print(l)\n",
+    "\n",
+    "#Yes, the length is still 80"
    ]
   },
   {
@@ -77,11 +101,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[73, 86, 2, 10, 0, 9, 6, 20, 87, 5, 39, 74, 63, 78, 92, 97, 20, 50, 56, 14, 3, 45, 70, 17, 15, 33, 95, 26, 0, 77, 62, 32, 65, 43, 88, 13, 77, 24, 12, 8, 9, 23, 76, 90, 11, 18, 89, 25, 20, 24, 28, 6, 65, 17, 31, 37, 51, 80, 77, 20, 37, 65, 84, 83, 65, 71, 73, 42, 95, 2, 2, 55, 92, 99, 67, 29, 10, 79, 58, 26]\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "sample_list_2 = []\n",
+    "for i in range(80):\n",
+    "    sample_list_2.append(random.randrange(100))\n",
+    "print(sample_list_2)"
    ]
   },
   {
@@ -93,11 +130,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "59\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "set2 = set(sample_list_2)\n",
+    "l2 = len(set2)\n",
+    "print(l2)\n",
+    "\n",
+    "# No. This time there were repeated numbers and so the repetitions were erased to create the set"
    ]
   },
   {
@@ -109,11 +160,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{1, 7, 16, 19, 21, 22, 27, 30, 34, 35, 36, 38, 41, 44, 46, 47, 49, 52, 53, 57, 59, 60, 61, 64, 66, 68, 69, 75, 81, 82, 85, 91, 93, 94}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "set3 = set1-set2\n",
+    "print(set3)\n"
    ]
   },
   {
@@ -125,11 +187,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{2, 67, 9, 73, 74, 79, 50, 51, 55, 86, 23, 24, 63}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "set4 = set2-set1\n",
+    "print(set4)\n"
    ]
   },
   {
@@ -141,11 +214,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 8,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 3, 5, 6, 8, 10, 11, 12, 13, 14, 15, 17, 18, 20, 25, 26, 28, 29, 31, 32, 33, 37, 39, 42, 43, 45, 56, 58, 62, 65, 70, 71, 76, 77, 78, 80, 83, 84, 87, 88, 89, 90, 92, 95, 97, 99}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "set5 = set1 - set3 -set4\n",
+    "print(set5)"
    ]
   },
   {
@@ -165,11 +248,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n",
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "c1 = len(set5)+len(set3) == len(set1)\n",
+    "c2 = len(set5)+len(set4) == len(set2)\n",
+    "\n",
+    "print(c1)\n",
+    "print(c2)"
    ]
   },
   {
@@ -181,11 +279,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "set()\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "set6 = set()\n",
+    "print(set6)"
    ]
   },
   {
@@ -197,11 +306,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 11,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 52, 53, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 70, 71, 75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 99}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "set6.update(set3,set5)\n",
+    "print(set6)"
    ]
   },
   {
@@ -213,11 +333,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 12,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "check16 = set1==set6\n",
+    "print(check16)"
    ]
   },
   {
@@ -229,11 +360,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 13,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "False\n",
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "ch2in1 = set2.issubset(set1)\n",
+    "print(ch2in1)\n",
+    "\n",
+    "ch3in1 = set3.issubset(set1)\n",
+    "print(ch3in1)"
    ]
   },
   {
@@ -247,11 +393,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 14,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "True\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "s345 = set3.union(set4,set5)\n",
+    "\n",
+    "s12 = set1.union(set2)\n",
+    "\n",
+    "c12345 = s12 == s345\n",
+    "print(c12345)"
    ]
   },
   {
@@ -263,11 +424,26 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 16,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{0, 1, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 52, 53, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 70, 71, 75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 99}\n",
+      "{1, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 52, 53, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 70, 71, 75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 99}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "print(set1)\n",
+    "\n",
+    "set1.pop()\n",
+    "\n",
+    "\n",
+    "print(set1)"
    ]
   },
   {
@@ -283,11 +459,27 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Your code here\n"
+   "execution_count": 17,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{3, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 17, 18, 20, 22, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 37, 38, 42, 43, 44, 45, 46, 47, 52, 53, 56, 57, 58, 60, 62, 64, 65, 66, 68, 70, 75, 76, 77, 78, 80, 82, 83, 84, 85, 87, 88, 90, 92, 93, 94, 95, 97}\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Your code here\n",
+    "\n",
+    "list_to_remove = [1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69, 71, 79, 81, 89, 91, 99]\n",
+    "\n",
+    "set_to_remove = set(list_to_remove)\n",
+    "\n",
+    "set1 -= set_to_remove\n",
+    "\n",
+    "print(set1)"
    ]
   }
  ],
@@ -307,7 +499,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.9.2"
   }
  },
  "nbformat": 4,
diff --git a/your-code/challenge-3.ipynb b/your-code/challenge-3.ipynb
index 74d65e0..9128c67 100644
--- a/your-code/challenge-3.ipynb
+++ b/your-code/challenge-3.ipynb
@@ -21,11 +21,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "dict1 = {\"Penelope\":178,\"Arnau\":172,\"Marta\":175}"
    ]
   },
   {
@@ -37,11 +38,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 3,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "keys: dict_keys(['Penelope', 'Arnau', 'Marta'])\n",
+      "values: dict_values([178, 172, 175])\n",
+      "items: dict_items([('Penelope', 178), ('Arnau', 172), ('Marta', 175)])\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "key1 = dict1.keys()\n",
+    "val1 = dict1.values()\n",
+    "it1 = dict1.items()\n",
+    "\n",
+    "print(\"keys:\",key1)\n",
+    "print(\"values:\",val1)\n",
+    "print(\"items:\",it1)"
    ]
   },
   {
@@ -53,11 +71,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 24,
+   "execution_count": 19,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'Penelope': 178, 'Arnau': 172, 'Marta': 175, 'Nacho': 187}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "dict1[\"Nacho\"] = 187\n",
+    "print(dict1)"
    ]
   },
   {
@@ -69,11 +97,22 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": 20,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'Penelope': 178, 'Arnau': 172, 'Marta': 175}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "del dict1[\"Nacho\"]\n",
+    "\n",
+    "print(dict1)"
    ]
   },
   {
@@ -87,7 +126,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 21,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -121,11 +160,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 26,
+   "execution_count": 22,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'a': 8, 'about': 1, 'all': 1, 'although': 3, 'and': 23, 'are': 1, 'at': 1, 'baby': 14, 'backseat': 1, 'bag': 1, 'bar': 1, 'be': 16, 'bedsheets': 3, 'begin': 1, 'best': 1, 'body': 17, 'boy': 2, 'brand': 6, 'can': 1, 'chance': 1, 'club': 1, 'come': 37, 'conversation': 1, 'crazy': 2, 'dance': 1, 'date': 1, 'day': 6, 'discovering': 6, 'do': 3, 'doing': 2, \"don't\": 2, 'drinking': 1, 'driver': 1, 'eat': 1, 'every': 6, 'falling': 3, 'family': 1, 'fast': 1, 'fill': 2, 'find': 1, 'first': 1, 'follow': 6, 'for': 3, 'friends': 1, 'get': 1, 'girl': 2, 'give': 1, 'go': 2, 'going': 1, 'grab': 2, 'hand': 1, 'handmade': 2, 'heart': 3, 'hours': 2, 'how': 1, 'i': 6, \"i'll\": 1, \"i'm\": 23, 'in': 27, 'is': 5, \"isn't\": 1, 'it': 1, 'jukebox': 1, 'just': 1, 'kiss': 1, 'know': 2, 'last': 3, 'lead': 6, 'leave': 1, 'let': 1, \"let's\": 2, 'like': 10, 'love': 25, 'lover': 1, 'magnet': 3, 'make': 1, 'man': 1, 'may': 2, 'me': 10, 'mind': 2, 'much': 2, 'my': 33, 'new': 6, 'night': 3, 'not': 2, 'now': 11, 'of': 6, 'okay': 1, 'on': 40, 'one': 1, 'our': 1, 'out': 1, 'over': 1, 'place': 1, 'plate': 1, 'play': 1, 'pull': 3, 'push': 3, 'put': 3, 'radio': 1, 'room': 3, 'say': 2, 'shape': 6, 'shots': 1, 'singing': 2, 'slow': 1, 'smell': 3, 'so': 2, 'somebody': 2, 'something': 6, 'sour': 1, 'start': 2, 'stop': 1, 'story': 1, 'sweet': 1, 'table': 1, 'take': 1, 'talk': 4, 'taxi': 1, 'tell': 1, 'that': 2, 'the': 18, 'then': 3, 'thrifty': 1, 'to': 2, 'too': 5, 'trust': 1, 'up': 3, 'van': 1, 'waist': 2, 'want': 2, 'was': 2, 'we': 7, \"we're\": 1, 'week': 1, 'were': 3, 'where': 1, 'with': 22, 'you': 16, 'your': 21}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "keys = list(word_freq.keys())\n",
+    "\n",
+    "keys.sort()\n",
+    "\n",
+    "word_freq2 = {}\n",
+    "\n",
+    "for i in keys:\n",
+    "    word_freq2[i] = word_freq[i]\n",
+    "\n",
+    "print(word_freq2)"
    ]
   },
   {
@@ -162,11 +220,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 23,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "{'conversation': 1, \"we're\": 1, 'plate': 1, 'sour': 1, 'jukebox': 1, 'taxi': 1, 'fast': 1, 'bag': 1, 'man': 1, 'going': 1, 'one': 1, 'backseat': 1, 'friends': 1, 'take': 1, 'play': 1, 'okay': 1, 'begin': 1, 'over': 1, 'just': 1, 'are': 1, 'tell': 1, 'drinking': 1, 'our': 1, 'where': 1, \"i'll\": 1, 'all': 1, \"isn't\": 1, 'make': 1, 'lover': 1, 'get': 1, 'radio': 1, 'give': 1, 'can': 1, 'club': 1, 'it': 1, 'out': 1, 'chance': 1, 'first': 1, 'table': 1, 'thrifty': 1, 'driver': 1, 'slow': 1, 'dance': 1, 'trust': 1, 'family': 1, 'week': 1, 'date': 1, 'leave': 1, 'at': 1, 'hand': 1, 'how': 1, 'eat': 1, 'about': 1, 'story': 1, 'sweet': 1, 'best': 1, 'let': 1, 'van': 1, 'shots': 1, 'place': 1, 'find': 1, 'kiss': 1, 'stop': 1, 'bar': 1, \"don't\": 2, 'mind': 2, 'know': 2, 'so': 2, 'start': 2, 'boy': 2, 'girl': 2, 'singing': 2, 'doing': 2, 'somebody': 2, 'handmade': 2, 'may': 2, 'that': 2, 'much': 2, 'grab': 2, 'was': 2, 'say': 2, 'waist': 2, 'want': 2, \"let's\": 2, 'not': 2, 'crazy': 2, 'go': 2, 'to': 2, 'fill': 2, 'hours': 2, 'push': 3, 'then': 3, 'put': 3, 'room': 3, 'magnet': 3, 'up': 3, 'pull': 3, 'last': 3, 'do': 3, 'smell': 3, 'although': 3, 'falling': 3, 'were': 3, 'night': 3, 'heart': 3, 'for': 3, 'bedsheets': 3, 'talk': 4, 'too': 5, 'is': 5, 'every': 6, 'new': 6, 'follow': 6, 'brand': 6, 'of': 6, 'i': 6, 'day': 6, 'lead': 6, 'shape': 6, 'discovering': 6, 'something': 6, 'we': 7, 'a': 8, 'like': 10, 'me': 10, 'now': 11, 'baby': 14, 'you': 16, 'be': 16, 'body': 17, 'the': 18, 'your': 21, 'with': 22, \"i'm\": 23, 'and': 23, 'love': 25, 'in': 27, 'my': 33, 'come': 37, 'on': 40}\n"
+     ]
+    }
+   ],
    "source": [
-    "# Your code here\n"
+    "# Your code here\n",
+    "\n",
+    "import operator\n",
+    "\n",
+    "sorted_tups = sorted(word_freq.items(), key=operator.itemgetter(1))\n",
+    "word_freq3 = {}\n",
+    "\n",
+    "for i in sorted_tups:\n",
+    "    word_freq3[i[0]] = i[1]\n",
+    "    \n",
+    "print(word_freq3)"
    ]
   }
  ],
@@ -186,7 +262,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.3"
+   "version": "3.9.2"
   }
  },
  "nbformat": 4,