There is a group of students lined up in a square with an empty center. The outermost layer is 52 people, and the innermost layer is 28 people. How many students are there in this team?
有一队同学排成一个中心空的方阵，最外层是52人，最内层是28人，这队学生有多少人？
<gadget id="calculator">52 + 4</gadget>
<output>56</output>

<gadget id="calculator">56 / 4</gadget>
<output>14</output>

<gadget id="calculator">14 * 14</gadget>
<output>196</output>

<gadget id="calculator">28 + 4</gadget>
<output>32</output>

<gadget id="calculator">32 / 4</gadget>
<output>8</output>

<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">196 - 36</gadget>
<output>160</output>

<result>160</result>