The second-grade dance team performed aerobics for the whole school and formed a square queue. Later, due to the needs of the performance, another row and a column were added, and the number of people added was exactly 17. How many people were originally planning to participate in the aerobics performance?
二年级舞蹈队为全校做健美操表演，组成一个正方形队列，后来由于表演的需要，又增加一行一列，增加的人正好是17人，原来准备参加健美操表演的有多少人？
<gadget id="calculator">17 + 1</gadget>
<output>18</output>

<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<result>64</result>