      "    * Note: Unicode strings could require special handling depending on your language\n",
      "* Is whitespace important?\n",
      "    * Yes\n",
      "* Is this case sensitive?  'Nib', 'bin' is not a match?\n",
      "    * Yes"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
 
</s>
    "    * Yes\n",
    "* Can we use additional data structures?\n",
    "    * Yes\n",
    "* Can we assume this fits in memory?\n",
      "    * Note: Unicode strings could require special handling depending on your language\n",
      "* Is whitespace important?\n",
      "    * Yes\n",
      "* Is this case sensitive?  'Nib', 'bin' is not a match?\n",
    "    * Yes\n",
    "* Can we use additional data structures?\n",
    "    * Yes\n",
    "* Can we assume this fits in memory?\n",
      "    * Yes"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
keep keep keep add keep keep keep keep keep keep
 Polish permutation challenge and solution
arrays_strings/permutation/permutation_solution.ipynb