A certain chorus team stands in a square matrix with 15 rows and 15 columns. If one row and one column are removed from the outer layer, how many people are left?
某班合唱队站成一个15行15列的方阵，如果从外层去掉一行一列，还剩多少人？
<gadget id="calculator">15 - 1</gadget>
<output>14</output>

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

<result>196</result>