There is a circular flower bed with a radius of 8m in the middle of the square, and a 2m wide gravel road is laid around the flower bed. What is the area of this gravel road in square meters?
广场中间有一个半径为8m的圆形花坛，在花坛周围铺设一条2m宽的石子路．这条石子路的面积是多少平方米？
<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

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

<gadget id="calculator">3.14 * 36</gadget>
<output>113.04</output>

<result>113.04</result>