{
 "metadata": {
  "name": "",
  "signature": "sha256:8d72ce9b9f91ed6f96f980210b0177925f92e33982b2b89f998df6d06998c484"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "\"Puzzle - you have A, A', B, B', C, C'. A, A' etc. differ in weight by 1 ounce. Separate the heavy and light using a balance only twice.\""
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "a = 1\n",
      "A = 2\n",
      "b = 1\n",
      "B = 2\n",
      "c = 1\n",
      "C = 2"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# First weight\n",
      "(a + b + c) < (A + B + C)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 5,
       "text": [
        "True"
       ]
      }
     ],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "# Second weight\n",
      "a < A"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 7,
       "text": [
        "True"
       ]
      }
     ],
     "prompt_number": 7
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Then lower case letters are lighter."
     ]
    }
   ],
   "metadata": {}
  }
 ]
}