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+{
+ "metadata": {
+  "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 11: Structures and Unions"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.1, Page number: 388"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = ''\n",
+      "\tname = ''\n",
+      "\taddress = ''\n",
+      "\tage = ''\n",
+      "\t\n",
+      "newstudent = student()\n",
+      "\n",
+      "print ('Enter the student information ')\n",
+      "newstudent.id_no = int(raw_input('Enter student id_no : '))\n",
+      "newstudent.name = raw_input('Enter name of the student : ')\n",
+      "newstudent.address = raw_input('Enter the address of the student : ')\n",
+      "newstudent.age = int(raw_input('Enter the age of the student : '))\n",
+      "\n",
+      "print ('You have entered following information...')\n",
+      "print ('Student id_number = %d ' % newstudent.id_no)\n",
+      "print ('Student name = %s ' % newstudent.name)\n",
+      "print ('Student address = %s ' % newstudent.address)\n",
+      "print ('Age of student = %d ' % newstudent.age)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 1\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Amanjeet\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Delhi\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 20\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 1 \n",
+        "Student name = Amanjeet \n",
+        "Student address = Delhi \n",
+        "Age of student = 20 \n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.2, Page number: 390"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = ''\n",
+      "\tname = ''\n",
+      "\taddress = ''\n",
+      "\tage = ''\n",
+      "\t\n",
+      "newstudent = student()\n",
+      "\n",
+      "def putdata (newstudent) : \n",
+      "   print ('You have entered following information...')\n",
+      "   print ('Student id_number = %d ' % newstudent.id_no)\n",
+      "   print ('Student name = %s ' % newstudent.name)\n",
+      "   print ('Student address = %s ' % newstudent.address)\n",
+      "   print ('Age of student = %d ' % newstudent.age)\n",
+      "    \n",
+      "print ('Enter the student information ')    \n",
+      "newstudent.id_no = int(raw_input('Enter student id_no : '))\n",
+      "newstudent.name = raw_input('Enter name of the student : ')\n",
+      "newstudent.address = raw_input('Enter the address of the student : ')\n",
+      "newstudent.age = int(raw_input('Enter the age of the student : '))\n",
+      "\n",
+      "putdata (newstudent)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 2\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Deepti\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Noida\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 23\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 2 \n",
+        "Student name = Deepti \n",
+        "Student address = Noida \n",
+        "Age of student = 23 \n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.3, Page number: 392"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = ''\n",
+      "\tname = ''\n",
+      "\taddress = ''\n",
+      "\tage = ''\n",
+      "\t\n",
+      "newstudent = student()\n",
+      "\n",
+      "def putdata (idno, name, add, age) :\n",
+      "   print ('You have entered following information...')\n",
+      "   print ('Student id_number = %d ' % idno)\n",
+      "   print ('Student name = %s ' % name)\n",
+      "   print ('Student address = %s ' % add)\n",
+      "   print ('Age of student = %d ' % age)\n",
+      "    \n",
+      "print ('Enter the student information ')\n",
+      "newstudent.id_no = int(raw_input('Enter student id_no : '))\n",
+      "newstudent.name = raw_input('Enter name of the student : ')\n",
+      "newstudent.address = raw_input('Enter the address of the student : ')\n",
+      "newstudent.age = int(raw_input('Enter the age of the student : '))\n",
+      "\n",
+      "putdata (newstudent.id_no, newstudent.name, newstudent.address, newstudent.age)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 3\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Kushagra\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Bangalore\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 21\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 3 \n",
+        "Student name = Kushagra \n",
+        "Student address = Bangalore \n",
+        "Age of student = 21 \n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.4, Page number: 395"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = 0\n",
+      "\tname = 'Unknown'\n",
+      "\taddress = 'Unknown'\n",
+      "\tage = 0\n",
+      "\t\n",
+      "newstudent = student()\n",
+      "\n",
+      "def readdata (newstudent) :\n",
+      "   print ('Enter the student information ')\n",
+      "   newstudent.id_no = int(raw_input('Enter student id_no : '))\n",
+      "   newstudent.name = raw_input('Enter name of the student : ')\n",
+      "   newstudent.address = raw_input('Enter the address of the student : ')\n",
+      "   newstudent.age = int(raw_input('Enter the age of the student : '))\n",
+      "\n",
+      "readdata (newstudent)\n",
+      "print ('You have entered following information...')\n",
+      "print ('Student id_number = %d ' % newstudent.id_no)\n",
+      "print ('Student name = %s ' % newstudent.name)\n",
+      "print ('Student address = %s ' % newstudent.address)\n",
+      "print ('Age of student = %d ' % newstudent.age)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 4\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Vipul\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Chandigarh\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 25\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 4 \n",
+        "Student name = Vipul \n",
+        "Student address = Chandigarh \n",
+        "Age of student = 25 \n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.5, Page number: 397"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = 0\n",
+      "\tname = 'Unknown'\n",
+      "\taddress = 'Unknown'\n",
+      "\tage = 0\n",
+      "\t\n",
+      "def readdata () :\n",
+      "   x = student()\n",
+      "   print ('Enter the student information ')\n",
+      "   x.id_no = int(raw_input('Enter student id_no : '))\n",
+      "   x.name = raw_input('Enter name of the student : ')\n",
+      "   x.address = raw_input('Enter the address of the student : ')\n",
+      "   x.age = int(raw_input('Enter the age of the student : '))\n",
+      "   return x\n",
+      "\n",
+      "newstudent = readdata()\n",
+      "\n",
+      "print ('You have entered following information...')\n",
+      "print ('Student id_number = %d ' % newstudent.id_no)\n",
+      "print ('Student name = %s ' % newstudent.name)\n",
+      "print ('Student address = %s ' % newstudent.address)\n",
+      "print ('Age of student = %d ' % newstudent.age)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 5\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Ujjwal\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Jaipur\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 20\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 5 \n",
+        "Student name = Ujjwal \n",
+        "Student address = Jaipur \n",
+        "Age of student = 20 \n"
+       ]
+      }
+     ],
+     "prompt_number": 6
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.6, Page number: 400"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student :\n",
+      "\tid_no = 0\n",
+      "\tname = 'Unknown'\n",
+      "\taddress = 'Unknown'\n",
+      "\tage = 0\n",
+      "\t\n",
+      "x = student()\n",
+      "\n",
+      "def readdata (x) :\n",
+      "   print ('Enter the student information ')\n",
+      "   x.id_no = int(raw_input('Enter student id_no : '))\n",
+      "   x.name = raw_input('Enter name of the student : ')\n",
+      "   x.address = raw_input('Enter the address of the student : ')\n",
+      "   x.age = int(raw_input('Enter the age of the student : '))\n",
+      "\n",
+      "readdata(x)    \n",
+      "print ('You have entered following information...')\n",
+      "print ('Student id_number = %d ' % x.id_no)\n",
+      "print ('Student name = %s ' % x.name)\n",
+      "print ('Student address = %s ' % x.address)\n",
+      "print ('Age of student = %d ' % x.age)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the student information \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter student id_no : 6\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of the student : Karan\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the address of the student : Chennai\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the age of the student : 24\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have entered following information...\n",
+        "Student id_number = 6 \n",
+        "Student name = Karan \n",
+        "Student address = Chennai \n",
+        "Age of student = 24 \n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.7, Page number: 403"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student (object) :\n",
+      "\tdef __init__(self, roll=None, name=None, gender=None, marks=[0]*3) :\n",
+      "\t\tself.roll = roll\n",
+      "\t\tself.name = name\n",
+      "\t\tself.gender = gender\n",
+      "\t\tself.marks = marks\n",
+      "\n",
+      "def putdata (stud, count) :\n",
+      "\tprint ('RollNo\\t   Name\\t\\t   Gender\\t   Sub1\\t      Sub2\\t Sub3 ')\n",
+      "\tprint ('---------------------------------------------------------------------')\n",
+      "\t\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tprint ('%-10d' % stud[i].roll),\n",
+      "\t\tprint ('%-15s' % stud[i].name),\n",
+      "\t\t\n",
+      "\t\tif stud[i].gender == 0 :\n",
+      "\t\t\tprint ('%-15s' % 'Female'),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('%-15s' % 'Male'),\n",
+      "\t\t\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tprint ('%-10d' % stud[i].marks[j]),\n",
+      "\t\tprint\n",
+      "\n",
+      "def calculateper (stud, count) :\n",
+      "\taverage = 0\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tsum = 0\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tsum = sum + stud[i].marks[j]\n",
+      "\t\taverage = average + sum/3\n",
+      "\treturn average/count\n",
+      "\n",
+      "stud = []\t\n",
+      "stud.append (student (1, 'Kapildev', 1, (45, 56, 67)))\n",
+      "stud.append (student (2, 'Vidya', 0, (87, 45, 23)))\n",
+      "stud.append (student (3, 'Sharada', 0, (67, 94, 56)))\n",
+      "stud.append (student (4, 'Saismaran', 1, (56, 38, 84)))\n",
+      "stud.append (student (5, 'Reshma', 0, (67, 98, 76)))\n",
+      "\n",
+      "average_percentage = calculateper (stud, 5)\n",
+      "putdata (stud, 5)\n",
+      "print ('\\nAverage percentage of the class is : %.2f ' % average_percentage)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "RollNo\t   Name\t\t   Gender\t   Sub1\t      Sub2\t Sub3 \n",
+        "---------------------------------------------------------------------\n",
+        "1          Kapildev        Male            45         56         67        \n",
+        "2          Vidya           Female          87         45         23        \n",
+        "3          Sharada         Female          67         94         56        \n",
+        "4          Saismaran       Male            56         38         84        \n",
+        "5          Reshma          Female          67         98         76        \n",
+        "\n",
+        "Average percentage of the class is : 63.00 \n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.8, Page number: 406"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student (object) :\n",
+      "\tdef __init__(self, roll=None, name=None, gender=None, marks=[0]*3) :\n",
+      "\t\tself.roll = roll\n",
+      "\t\tself.name = name\n",
+      "\t\tself.gender = gender\n",
+      "\t\tself.marks = marks\n",
+      "\t\n",
+      "def putdata (stud, count) :\n",
+      "\tprint ('\\nRollNo\\t   Name\\t\\t   Gender\\t   Sub1\\t      Sub2\\t Sub3 ')\n",
+      "\tprint ('---------------------------------------------------------------------')\n",
+      "\t\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tprint ('%-10d' % stud[i].roll),\n",
+      "\t\tprint ('%-15s' % stud[i].name),\n",
+      "\t\t\n",
+      "\t\tif stud[i].gender == 0 :\n",
+      "\t\t\tprint ('%-15s' % 'Female'),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('%-15s' % 'Male'),\n",
+      "\t\t\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tprint ('%-10d' % stud[i].marks[j]),\n",
+      "\t\tprint\n",
+      "\n",
+      "def calculateper (stud, count) :\n",
+      "\taverage = 0\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tsum = 0\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tsum = sum + stud[i].marks[j]\n",
+      "\t\taverage = average + sum/3\n",
+      "\treturn average/count\n",
+      "\n",
+      "count = int(raw_input('Enter the number of students in a class : '))\n",
+      "stud = [student() for i in range (0, count)]\n",
+      "\n",
+      "for i in range (0, count) :\n",
+      "\tstud[i].roll = int(raw_input('\\nEnter roll number of student %d: ' % (i+1)))\n",
+      "\tstud[i].name = raw_input('Enter name of student %d: ' % (i+1))\n",
+      "\tstud[i].gender = int(raw_input('Enter gender[0/1] of student %d: ' % (i+1)))\n",
+      "\tprint ('Enter marks of three subjects of student %d: ' % (i+1))\n",
+      "\tfor j in range (0, 3) :\n",
+      "\t\tstud[i].marks[j] = int(raw_input('Subject %d: ' % (j+1)))\n",
+      "\n",
+      "putdata (stud, count)\n",
+      "average_percentage = calculateper (stud, count)\n",
+      "print ('\\nAverage percentage of the class is : %.2f ' % average_percentage)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the number of students in a class : 1\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter roll number of student 1: 24\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of student 1: Vidya\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter gender[0/1] of student 1: 0\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter marks of three subjects of student 1: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 1: 78\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 2: 96\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 3: 75\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "RollNo\t   Name\t\t   Gender\t   Sub1\t      Sub2\t Sub3 \n",
+        "---------------------------------------------------------------------\n",
+        "24         Vidya           Female          78         96         75        \n",
+        "\n",
+        "Average percentage of the class is : 83.00 \n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.9, Page number: 408"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class student (object) :\n",
+      "\tdef __init__(self, roll=None, name=None, gender=None, marks=[0]*3) :\n",
+      "\t\tself.roll = roll\n",
+      "\t\tself.name = name\n",
+      "\t\tself.gender = gender\n",
+      "\t\tself.marks = marks\n",
+      "\n",
+      "def readdata (stud, count) :\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tstud[i].roll = int(raw_input('\\nEnter roll number of student %d: ' % (i+1)))\n",
+      "\t\tstud[i].name = raw_input('Enter name of student %d: ' % (i+1))\n",
+      "\t\tstud[i].gender = int(raw_input('Enter gender[0/1] of student %d: ' % (i+1)))\n",
+      "\t\tprint ('Enter marks of three subjects of student %d: ' % (i+1))\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tstud[i].marks[j] = int(raw_input('Subject %d: ' % (j+1)))\n",
+      "\t\n",
+      "def putdata (stud, count) :\n",
+      "\tprint ('\\nRollNo\\t   Name\\t\\t   Gender\\t   Sub1\\t      Sub2\\t Sub3 ')\n",
+      "\tprint ('---------------------------------------------------------------------')\n",
+      "\t\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tprint ('%-10d' % stud[i].roll),\n",
+      "\t\tprint ('%-15s' % stud[i].name),\n",
+      "\t\t\n",
+      "\t\tif stud[i].gender == 0 :\n",
+      "\t\t\tprint ('%-15s' % 'Female'),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('%-15s' % 'Male'),\n",
+      "\t\t\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tprint ('%-10d' % stud[i].marks[j]),\n",
+      "\t\tprint\n",
+      "\n",
+      "def calculateper (stud, count) :\n",
+      "\taverage = 0\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tsum = 0\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tsum = sum + stud[i].marks[j]\n",
+      "\t\taverage = average + sum/3\n",
+      "\treturn average/count\n",
+      "\n",
+      "count = int(raw_input('Enter the number of students in a class : '))\n",
+      "stud = [student() for i in range (0, count)]\n",
+      "readdata (stud, count)\n",
+      "\n",
+      "average_percentage = calculateper (stud, count)\n",
+      "putdata (stud, count)\n",
+      "print ('\\nAverage percentage of the class is : %.2f ' % average_percentage)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the number of students in a class : 1\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter roll number of student 1: 25\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of student 1: Kapildev\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter gender[0/1] of student 1: 1\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter marks of three subjects of student 1: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 1: 45\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 2: 70\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 3: 93\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "RollNo\t   Name\t\t   Gender\t   Sub1\t      Sub2\t Sub3 \n",
+        "---------------------------------------------------------------------\n",
+        "25         Kapildev        Male            45         70         93        \n",
+        "\n",
+        "Average percentage of the class is : 69.00 \n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.10, Page number: 412"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class time (object) :\n",
+      "\tdef __init__(self, hours=None, minutes=None, seconds=None) :\n",
+      "\t\tself.hours = hours\n",
+      "\t\tself.minutes = minutes\n",
+      "\t\tself.seconds = seconds\n",
+      "\n",
+      "def AcceptTime (t) :\n",
+      "\tprint ('Enter the time in hh mm ss format: ')\n",
+      "\tt.hours = int(raw_input('Hours = '))\n",
+      "\tt.minutes = int(raw_input('Minutes = '))\n",
+      "\tt.seconds = int(raw_input('Seconds = '))\n",
+      "\n",
+      "def ValidateTime (t) :\n",
+      "\tif t.hours < 0 or t.hours > 23 :\n",
+      "\t\treturn 0\n",
+      "\tif t.minutes < 0 or t.minutes > 60 :\n",
+      "\t\treturn 0\n",
+      "\tif t.seconds < 0 or t.seconds > 60 :\n",
+      "\t\treturn 0\n",
+      "\treturn 1\n",
+      "\n",
+      "def DisplayTime (t) :\n",
+      "\tprint ('Time you entered is %d:%d:%d ' % (t.hours, t.minutes, t.seconds))\n",
+      "\t\n",
+      "condition = True\n",
+      "while condition :\n",
+      "\tt = time ()\n",
+      "\tAcceptTime (t)\n",
+      "\t\n",
+      "\tif ValidateTime (t) == 1 :\n",
+      "\t\tcondition = False\n",
+      "\telse :\n",
+      "\t\tprint ('\\nTime is incorrect. Enter again ')\n",
+      "\t\t\n",
+      "DisplayTime (t)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the time in hh mm ss format: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Hours = 13\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Minutes = 45\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Seconds = 53\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Time you entered is 13:45:53 \n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.11, Page number: 414"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class date (object) :\n",
+      "\tdef __init__(self, dd=None, mm=None, yy=None) :\n",
+      "\t\tself.dd = dd\n",
+      "\t\tself.mm = mm\n",
+      "\t\tself.yy = yy\n",
+      "\n",
+      "def AcceptDate (d) :\n",
+      "\tprint ('Enter date in dd mm yy format: ')\n",
+      "\td.dd = int(raw_input('Date = '))\n",
+      "\td.mm = int(raw_input('Month = '))\n",
+      "\td.yy = int(raw_input('Year = '))\n",
+      "\n",
+      "def isleap (val) :\n",
+      "\tif val % 4 == 0 and val % 100 or val % 400 == 0 :\n",
+      "\t\treturn 1\n",
+      "\treturn 0\n",
+      "\t\n",
+      "def ValidateDate (d) :\n",
+      "\tif d.dd < 1 or d.dd > 31 :\n",
+      "\t\treturn 0\n",
+      "\tif d.mm < 1 or d.mm > 12 :\n",
+      "\t\treturn 0\n",
+      "\tif d.yy < 1 :\n",
+      "\t\treturn 0\n",
+      "\tif d.mm == 2 :\n",
+      "\t\tif isleap (d.yy) :\n",
+      "\t\t\tif d.dd > 29 :\n",
+      "\t\t\t\treturn 0\n",
+      "\t\telif d.dd > 28 :\n",
+      "\t\t\treturn 0\n",
+      "\tif d.mm == 4 or d.mm == 6 or d.mm == 9 or d.mm == 11 and d.dd > 30 :\n",
+      "\t\treturn 0\n",
+      "\treturn 1\n",
+      "\n",
+      "def DisplayMsg (d1, d2) :\n",
+      "\tif d1.dd == d2.dd and d1.mm == d2.mm and d1.yy == d2.yy :\n",
+      "\t\tprint ('Both dates are Equal ')\n",
+      "\telse :\n",
+      "\t\tprint ('Both dates are Not Equal ')\n",
+      "\t\n",
+      "condition = True\n",
+      "while condition :\n",
+      "\td1 = date ()\n",
+      "\tAcceptDate (d1)\n",
+      "\t\n",
+      "\tif ValidateDate (d1) == 1 :\n",
+      "\t\tcondition = False\n",
+      "\telse :\n",
+      "\t\tprint ('\\nDate is incorrect. Enter again ')\n",
+      "\n",
+      "condition = True\n",
+      "while condition :\n",
+      "\td2 = date ()\n",
+      "\tAcceptDate (d2)\n",
+      "\t\n",
+      "\tif ValidateDate (d2) == 1 :\n",
+      "\t\tcondition = False\n",
+      "\telse :\n",
+      "\t\tprint ('\\nDate is incorrect. Enter again ')\n",
+      "\t\t\n",
+      "DisplayMsg (d1, d2)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter date in dd mm yy format: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Date = 12\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Month = 11\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Year = 92\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter date in dd mm yy format: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Date = 12\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Month = 11\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Year = 92\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Both dates are Equal \n"
+       ]
+      }
+     ],
+     "prompt_number": 15
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.12, Page number: 415"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Structure declaration\n",
+      "class date (object) :\n",
+      "\tdef __init__(self, dd=None, mm=None, yy=None) :\n",
+      "\t\tself.dd = dd\n",
+      "\t\tself.mm = mm\n",
+      "\t\tself.yy = yy\n",
+      "\n",
+      "def AcceptDate (d) :\n",
+      "\tprint ('Enter date in dd mm yy format: ')\n",
+      "\td.dd = int(raw_input('Date = '))\n",
+      "\td.mm = int(raw_input('Month = '))\n",
+      "\td.yy = int(raw_input('Year = '))\n",
+      "\n",
+      "def isleap (val) :\n",
+      "\tif val % 4 == 0 and val % 100 or val % 400 == 0 :\n",
+      "\t\treturn 1\n",
+      "\treturn 0\n",
+      "\t\n",
+      "def ValidateDate (d) :\n",
+      "\tif d.dd < 1 or d.dd > 31 :\n",
+      "\t\treturn 0\n",
+      "\tif d.mm < 1 or d.mm > 12 :\n",
+      "\t\treturn 0\n",
+      "\tif d.yy < 1 :\n",
+      "\t\treturn 0\n",
+      "\tif d.mm == 2 :\n",
+      "\t\tif isleap (d.yy) :\n",
+      "\t\t\tif d.dd > 29 :\n",
+      "\t\t\t\treturn 0\n",
+      "\t\telif d.dd > 28 :\n",
+      "\t\t\treturn 0\n",
+      "\tif d.mm == 4 or d.mm == 6 or d.mm == 9 or d.mm == 11 and d.dd > 30 :\n",
+      "\t\treturn 0\n",
+      "\treturn 1\n",
+      "\n",
+      "def CalcDate (d1, d2) :\n",
+      "\tdate1 = date2 = 0\n",
+      "\tfor i in range (-d1.yy, d1.yy) :\n",
+      "\t\tdate1 = date1 + 366 if isleap (d1.yy) else 365\n",
+      "\t\td1.yy = d1.yy - 1\n",
+      "\t\t\n",
+      "\tfor i in range (-d1.mm, d1.mm) :\n",
+      "\t\tdate1 = date1 + (30 if (d1.mm==4 or d1.mm==6 or d1.mm==9 or d1.mm==11) else ((29 if isleap(d1.yy) else 28) if (d1.mm==2) else 31))\n",
+      "\t\n",
+      "\tdate1 = date1 + d1.dd\n",
+      "\t\n",
+      "\tfor i in range (-d2.yy, d2.yy) :\n",
+      "\t\tdate2 = date2 + 366 if isleap(d2.yy) else 365\n",
+      "\t\n",
+      "\tfor i in range (-d2.mm, d2.mm) :\n",
+      "\t\tdate2 = date2 + (30 if (d2.mm==4 or d2.mm==6 or d2.mm==9 or d2.mm==11) else ((29 if isleap(d2.yy) else 28) if d2.mm==2 else 31))\n",
+      "\t\n",
+      "\tdate2 = date2 + d2.dd\n",
+      "\t\n",
+      "\treturn (date2 - date1)/2\n",
+      "\t\t\n",
+      "def DisplayMsg (d1, d2, diff) :\n",
+      "\tprint ('The difference between %d %d %d and %d %d %d is %d days ' % (d1.dd, d1.mm, -d1.yy, d2.dd, d2.mm, d2.yy, diff))\n",
+      "\t\n",
+      "condition = True\n",
+      "while condition :\n",
+      "\tprint ('\\nEnter first date: ')\n",
+      "\td1 = date ()\n",
+      "\tAcceptDate (d1)\n",
+      "\t\n",
+      "\tif ValidateDate (d1) == 1 :\n",
+      "\t\tcondition = False\n",
+      "\telse :\n",
+      "\t\tprint ('\\nDate is incorrect. Enter again ')\n",
+      "\n",
+      "condition = True\n",
+      "while condition :\n",
+      "\tprint ('\\nEnter second date: ')\n",
+      "\td2 = date ()\n",
+      "\tAcceptDate (d2)\n",
+      "\t\n",
+      "\tif ValidateDate (d2) == 1 :\n",
+      "\t\tcondition = False\n",
+      "\telse :\n",
+      "\t\tprint ('\\nDate is incorrect. Enter again ')\n",
+      "\n",
+      "diff = CalcDate (d1, d2)\n",
+      "DisplayMsg (d1, d2, diff)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter first date: \n",
+        "Enter date in dd mm yy format: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Date = 01\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Month = 01\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Year = 01\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter second date: \n",
+        "Enter date in dd mm yy format: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Date = 25\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Month = 12\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Year = 08\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The difference between 1 1 1 and 25 12 8 is 2915 days \n"
+       ]
+      }
+     ],
+     "prompt_number": 16
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.13, Page number: 419"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from ctypes import *\n",
+      "\n",
+      "# Structure declaration\n",
+      "class stream (Union) :\n",
+      "\t_fields_ = [('grade', c_char), \n",
+      "\t\t\t\t\t('class_std', c_int), \n",
+      "\t\t\t\t\t('percentage', c_float)]\n",
+      "\t\n",
+      "class student (Structure) :\n",
+      "\t_fields_ = [('roll', c_int), \n",
+      "\t\t\t\t\t('name', c_char_p), \n",
+      "\t\t\t\t\t('gender', c_int), \n",
+      "\t\t\t\t\t('marks', c_int * 3), \n",
+      "\t\t\t\t\t('st_stream', c_char), \n",
+      "\t\t\t\t\t('st', stream)]\n",
+      "\t\n",
+      "def putdata (stud, count) :\n",
+      "\tprint ('\\nStream\\t   Roll\\t  Name\\t        Gender\\t  Result\\t ')\n",
+      "\tprint ('---------------------------------------------------------------------')\n",
+      "\t\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tif stud[i].st_stream == 'A' :\n",
+      "\t\t\tprint ('Arts\\t  '),\n",
+      "\t\telif stud[i].st_stream == 'S' :\n",
+      "\t\t\tprint ('Science\\t  '),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('Commerce  '),\n",
+      "\t\t\t\n",
+      "\t\tprint ('%-5d ' % stud[i].roll),\n",
+      "\t\tprint ('%-3s ' % stud[i].name),\n",
+      "\t\t\n",
+      "\t\tif stud[i].gender == 0 :\n",
+      "\t\t\tprint ('\\tFemale'),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('\\tMale  '),\n",
+      "\t\t\n",
+      "\t\tif stud[i].st_stream == 'A' :\n",
+      "\t\t\tprint ('   %d Class ' % stud[i].st.class_std),\n",
+      "\t\telif stud[i].st_stream == 'S' :\n",
+      "\t\t\tprint ('   %c Grade ' % stud[i].st.grade),\n",
+      "\t\telse :\n",
+      "\t\t\tprint ('   %.2f Percent ' % stud[i].st.percentage),\n",
+      "\t\tprint\n",
+      "\n",
+      "def calculateper (stud, count) :\n",
+      "\taverage = 0\n",
+      "\tfor i in range (0, count) :\n",
+      "\t\tsum = 0\n",
+      "\t\tfor j in range (0, 3) :\n",
+      "\t\t\tsum = sum + stud[i].marks[j]\n",
+      "\t\taverage = (float)(sum/3)\n",
+      "\t\t\n",
+      "\t\tif stud[i].st_stream == 'A' :\n",
+      "\t\t\tif average >= 60 :\n",
+      "\t\t\t\tstud[i].st.class_std = 1\n",
+      "\t\t\telse :\n",
+      "\t\t\t\tstud[i].st.class_std = 2\n",
+      "\t\t\t\t\n",
+      "\t\telif stud[i].st_stream == 'S' :\n",
+      "\t\t\tif average >= 60 :\n",
+      "\t\t\t\tstud[i].st.grade = 'A'\n",
+      "\t\t\telse :\n",
+      "\t\t\t\tstud[i].st.class_std = 'B'\n",
+      "\t\telse : \n",
+      "\t\t\tstud[i].st.percentage = average\n",
+      "\n",
+      "count = int(raw_input('Enter the number of students in a class : '))\n",
+      "stud = [student() for i in range (0, count)]\n",
+      "\n",
+      "for i in range (0, count) :\n",
+      "\tstud[i].st_stream = raw_input('\\nEnter stream of student %d (A/C/S) : ' % (i+1))\n",
+      "\tstud[i].roll = int(raw_input('Enter roll number of student %d : ' % (i+1)))\n",
+      "\tstud[i].name = raw_input('Enter name of student %d : ' % (i+1))\n",
+      "\tstud[i].gender = int(raw_input('Enter gender of student %d [0/1] : ' % (i+1)))\n",
+      "\tprint ('Enter marks of three subjects of student %d : ' % (i+1))\n",
+      "\tfor j in range (0, 3) :\n",
+      "\t\tstud[i].marks[j] = int(raw_input('Subject %d : ' % (j+1)))\n",
+      "\t\n",
+      "calculateper (stud, count)\n",
+      "putdata (stud, count)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the number of students in a class : 3\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter stream of student 1 (A/C/S) : A\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter roll number of student 1 : 1\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of student 1 : Saismaran\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter gender of student 1 [0/1] : 1\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter marks of three subjects of student 1 : \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 1 : 65\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 2 : 83\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 3 : 59\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter stream of student 2 (A/C/S) : C\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter roll number of student 2 : 2\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of student 2 : Vidya\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter gender of student 2 [0/1] : 0\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter marks of three subjects of student 2 : \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 1 : 84\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 2 : 75\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 3 : 93\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Enter stream of student 3 (A/C/S) : S\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter roll number of student 3 : 3\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter name of student 3 : Pranav\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter gender of student 3 [0/1] : 1\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter marks of three subjects of student 3 : \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 1 : 84\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 2 : 95\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Subject 3 : 83\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "Stream\t   Roll\t  Name\t        Gender\t  Result\t \n",
+        "---------------------------------------------------------------------\n",
+        "Arts\t   1      Saismaran  \tMale      1 Class \n",
+        "Commerce   2      Vidya  \tFemale    84.00 Percent \n",
+        "Science\t   3      Pranav  \tMale      A Grade \n"
+       ]
+      }
+     ],
+     "prompt_number": 17
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file