A group of students stands in a square matrix of 10 rows and 10 columns. If 2 rows and 2 columns are removed, how many people will be reduced?
一队学生站成10行10列方阵，如果去掉2行2列，那么要减少多少人？
<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">100 - 64</gadget>
<output>36</output>

<result>36</result>