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+{
+ "metadata": {
+  "name": "Chapter 23"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": "Chapter 23: Programming adages"
+    },
+    {
+     "cell_type": "heading",
+     "level": 3,
+     "metadata": {},
+     "source": "Example 23.1, Page number: 447"
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": "# Example 23.1.py\n# To check whether the number input by the user is 2 or not\n\n\n# Variable declaration\nnumber = 2\n\n# Calculation and result\nif (number != 2) :\n   print ('Number is not two\\n')\nelse :\n   print ('Number is two\\n')",
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": "Number is two\n\n"
+      }
+     ],
+     "prompt_number": 1
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file