diff --git a/Week 3_Assignment.ipynb b/Week 3_Assignment.ipynb
new file mode 100644
index 0000000..936fad7
--- /dev/null
+++ b/Week 3_Assignment.ipynb	
@@ -0,0 +1,179 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1]\n",
+      "[1, 1]\n",
+      "[1, 2, 1]\n",
+      "[1, 3, 3, 1]\n",
+      "[1, 4, 6, 4, 1]\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "def ptriangle(n):\n",
+    "    \"\"\"Pascal's triangle is an arithmetic and geometric figure first imagined by Blaise Pascal.\"\"\"\n",
+    "    row = [1]\n",
+    "    x = [0]\n",
+    "    for i in range(max(n,0)):\n",
+    "        print(row)\n",
+    "        row = [l + r for l, r in zip(row + x, x + row)]\n",
+    "    return n >= 1\n",
+    "ptriangle(5)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "black-green-red-white-yellow\n"
+     ]
+    }
+   ],
+   "source": [
+    "def change(string):\n",
+    "    return string[-1:] + string[1:-1] + string[:1]\n",
+    "string = [n for n in input().split('-')]\n",
+    "string.sort()\n",
+    "print('-'.join(string))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The number 23 is not a perfect number\n"
+     ]
+    }
+   ],
+   "source": [
+    "x = int(input(\"Enter number: \"))\n",
+    "y = 0\n",
+    "for i in range(1, x):\n",
+    "    if x % i == 0:\n",
+    "        y = y + i\n",
+    "if y == x:\n",
+    "    print(f\"The number {x} is a perfect number\")\n",
+    "else:\n",
+    "    print(f\"The number {x} is not a perfect number\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The number 28 is a perfect number\n"
+     ]
+    }
+   ],
+   "source": [
+    "x = int(input(\"Enter a number: \"))\n",
+    "def perfect_number(n: int):\n",
+    "    y = 0\n",
+    "    for i in range(1, n):\n",
+    "        if n % i == 0:\n",
+    "            y = y + i\n",
+    "    if y == n:\n",
+    "        print(f\"The number {x} is a perfect number\")\n",
+    "    else:\n",
+    "        print(f\"The number {x} is not a perfect number\")\n",
+    "perfect_number(x)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "TypeError",
+     "evalue": "can only concatenate list (not \"int\") to list",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[1;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
+      "Cell \u001b[1;32mIn[25], line 7\u001b[0m\n\u001b[0;32m      5\u001b[0m \u001b[39mimport\u001b[39;00m \u001b[39mrandom\u001b[39;00m\n\u001b[0;32m      6\u001b[0m password \u001b[39m=\u001b[39m []\n\u001b[1;32m----> 7\u001b[0m \u001b[39mfor\u001b[39;00m i \u001b[39min\u001b[39;00m \u001b[39mrange\u001b[39m(\u001b[39m1\u001b[39m, letters \u001b[39m+\u001b[39;49m \u001b[39m1\u001b[39;49m):\n\u001b[0;32m      8\u001b[0m     password\u001b[39m.\u001b[39mappend(random\u001b[39m.\u001b[39mchoice(letters))\n\u001b[0;32m      9\u001b[0m     \u001b[39mfor\u001b[39;00m i \u001b[39min\u001b[39;00m \u001b[39mrange\u001b[39m(\u001b[39m1\u001b[39m, symbols \u001b[39m+\u001b[39m \u001b[39m1\u001b[39m):\n",
+      "\u001b[1;31mTypeError\u001b[0m: can only concatenate list (not \"int\") to list"
+     ]
+    }
+   ],
+   "source": [
+    "letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', ' q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y' 'z']\n",
+    "numbers = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']\n",
+    "symbols = ['!', '@', '#', '$', '%', '^', '&', '*', '\"', '(', ')']\n",
+    "\n",
+    "import random\n",
+    "password = []\n",
+    "for i in range(1, letters + 1):\n",
+    "    password.append(random.choice(letters))\n",
+    "    for i in range(1, symbols + 1):\n",
+    "        password.append(random.choice(numbers + 1))\n",
+    "        for i in range(1, numbers + 1):\n",
+    "            password.append(random.choice(symbols))\n",
+    "\n",
+    "random.shuffle(password)\n",
+    "\n",
+    "final_password = \"\"\n"
+   ]
+  }
+ ],
+ "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": "3.11.1"
+  },
+  "orig_nbformat": 4,
+  "vscode": {
+   "interpreter": {
+    "hash": "9ef3cc2511ae391cc7db93131957300bc18e82857ec78976ef34b5343338933a"
+   }
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}