diff --git a/your-code/main.ipynb b/your-code/main.ipynb
index 01257d4..9a1a534 100755
--- a/your-code/main.ipynb
+++ b/your-code/main.ipynb
@@ -25,14 +25,15 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "def modify_list(lst, lmbda):\n",
+    "def modify_list(lst, lambda_expression()):\n",
     "    \"\"\"\n",
     "    Input: list and lambda expression\n",
     "    Output: the transformed list\n",
-    "    \"\"\"\n",
-    "    \n",
-    "    # your code here\n",
-    "    "
+    " \"\"\"\n",
+    "    for element in list:\n",
+    "        lambda_expression()\n",
+    "        \n",
+    "    # your code here"
    ]
   },
   {
@@ -50,7 +51,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code here"
+    "# your code here\n",
+    "\n",
+    "f = lambda x: x + 273.15\n"
    ]
   },
   {
@@ -62,12 +65,23 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[285.15, 296.15, 311.15, 218.14999999999998, 297.15]\n"
+     ]
+    }
+   ],
    "source": [
     "temps = [12, 23, 38, -55, 24]\n",
     "\n",
+    "temps_kelvin = list(map(lambda temps: temps + 273.15, temps))\n",
+    "print(temps_kelvin)\n",
+    "\n",
     "# your code here"
    ]
   },
@@ -82,11 +96,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code here"
+    "# your code here\n",
+    "mod = lambda x, y: 1 if x %y == 0 else 0"
    ]
   },
   {
@@ -100,17 +115,17 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [],
    "source": [
-    "def divisor(b):\n",
+    "def divisor(x):\n",
     "    \"\"\"\n",
     "    Input: a number\n",
     "    Output: a function that returns 1 if the number is \n",
     "    divisible by another number (to be passed later) and zero otherwise.\n",
     "    \"\"\"\n",
-    "    \n",
+    "    return mod(x,y)\n",
     "    # your code here"
    ]
   },
@@ -123,11 +138,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code here"
+    "# your code here\n",
+    "divisibles = divisor(5)"
    ]
   },
   {
@@ -139,9 +155,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 17,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "ename": "NameError",
+     "evalue": "name 'divisible5' is not defined",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[1;31mNameError\u001b[0m                                 Traceback (most recent call last)",
+      "\u001b[1;32m<ipython-input-17-f415c02b249c>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0mdivisible5\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m10\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[1;31mNameError\u001b[0m: name 'divisible5' is not defined"
+     ]
+    }
+   ],
    "source": [
     "divisible5(10)"
    ]
@@ -269,7 +297,20 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.8.3"
+  },
+  "toc": {
+   "base_numbering": 1,
+   "nav_menu": {},
+   "number_sections": true,
+   "sideBar": true,
+   "skip_h1_title": false,
+   "title_cell": "Table of Contents",
+   "title_sidebar": "Contents",
+   "toc_cell": false,
+   "toc_position": {},
+   "toc_section_display": true,
+   "toc_window_display": false
   }
  },
  "nbformat": 4,