A square team has 24 people on the outer layer, how many people are there in total in this team.
一个正方形方队，外层有24人，问这个方队总共有多少人．
<gadget id="calculator">24 + 4</gadget>
<output>28</output>

<gadget id="calculator">28 / 4</gadget>
<output>7</output>

<gadget id="calculator">7 * 7</gadget>
<output>49</output>

<result>49</result>