    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "## Clarifying Questions\n",
      "\n",
      "*Problem statements are sometimes intentionally ambiguous.  Asking clarifying questions, identifying constraints, and stating assumptions help to ensure you code the intended solution.*\n",
      "\n",
      "* Can I assume the string is ASCII?\n",
      "    * Yes\n",
 
</s> remove     "* [Clarifying Questions](#Clarifying-Questions)\n",
 </s> add     "* [Constraints and Assumptions](#Constraints-and-Assumptions)\n", </s> remove     "*Problem statements are sometimes intentionally ambiguous.  Asking clarifying questions, identifying constraints, and stating assumptions help to ensure you code the intended solution.*\n",
 </s> add     "*Problem statements are often intentionally ambiguous.  Identifying constraints and stating assumptions can help to ensure you code the intended solution.*\n",
    "## Constraints and Assumptions\n",
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
    "## Constraints and Assumptions\n",
      "\n",
      "*Problem statements are sometimes intentionally ambiguous.  Asking clarifying questions, identifying constraints, and stating assumptions help to ensure you code the intended solution.*\n",
      "\n",
      "* Can I assume the string is ASCII?\n",
      "    * Yes\n",
keep keep keep keep replace keep keep keep keep keep
 Tweaked description of Constraints and Assumptions. 
arrays-strings/rotation.ipynb