diff --git a/Seth_A99501/day15.ipynb b/Seth_A99501/day15.ipynb
new file mode 100644
index 00000000..fcb6b3f8
--- /dev/null
+++ b/Seth_A99501/day15.ipynb
@@ -0,0 +1,58 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "87\n",
+      "2\n"
+     ]
+    }
+   ],
+   "source": [
+    "def max_min():\n",
+    "    #creating a list of numbers.\n",
+    "    list=[2,4,5,6,7,34,56,67,87,23,5]\n",
+    "    \n",
+    "    #initializing theee value of max and min respectively.\n",
+    "    max_value=list[0]\n",
+    "    min_value=list[0]\n",
+    "    #iterate through the list\n",
+    "    for i in range(len(list)):\n",
+    "        if list[i] > max_value:\n",
+    "            max_value=list[i]\n",
+    "        elif list[i] < min_value:\n",
+    "            min_value=list[i]\n",
+    "    print(max_value)\n",
+    "    print(min_value)\n",
+    "max_min()"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}