    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "<small><i>This notebook was prepared by [Author](https://github.com/). Source and license info is on [GitHub](https://github.com/donnemartin/interactive-coding-challenges).</i></small>"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
 
</s> remove     "## Unit Test"
 </s> add     "## Unit Test\n",
    "\n",
    "#### The following unit test is expected to fail until you solve the challenge." </s> remove     "## Code"
 </s> add     "# Code: Modified Selection Sort" </s> remove    "execution_count": 1,
 </s> add    "execution_count": 5, </s> remove 
    "* Is it foo or bar?\n",
    "    * foo"
 </s> add     "* Can we use extra data structures?\n",
    "    * Yes" </s> remove    "execution_count": 3,
 </s> add    "execution_count": 4,
    "<small><i>This notebook was prepared by [wdonahoe](https://github.com/wdonahoe). Source and license info is on [GitHub](https://github.com/donnemartin/interactive-coding-challenges).</i></small>"
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
    "<small><i>This notebook was prepared by [wdonahoe](https://github.com/wdonahoe). Source and license info is on [GitHub](https://github.com/donnemartin/interactive-coding-challenges).</i></small>"
     ]
    },
    {
     "cell_type": "markdown",
     "metadata": {},
keep keep keep keep replace keep keep keep keep keep
 added both solutions w/ test 
arrays_strings/group_items/group_ordered_solution.ipynb