There are 16 more soldiers in a team of fighters arranged in a three-layer hollow square. If there is another layer in the hollow part and there are 28 people missing, how many soldiers in this team?
一队战士排成一个三层空心方阵多出16人，如果在空心部分再增加一层又缺28人，这队战士共有多少人？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">15 + 6</gadget>
<output>21</output>

<gadget id="calculator">21 - 3</gadget>
<output>18</output>

<gadget id="calculator">18 * 3 * 4</gadget>
<output>216</output>

<result>216</result>