In the sports meeting, the sixth grade students line up in a square team. It is known that the outermost layer is 60 people. How many people are there in this team.
在运动会上，六年级的学生排成一个正方形方队，已知最外层为60人，这个方队共有多少人．
<gadget id="calculator">60 + 4</gadget>
<output>64</output>

<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 16</gadget>
<output>256</output>

<result>256</result>