The circumference of a circular fountain is 56.52 meters, and a sidewalk with a width of 1 meter is going to be paved around it. How many square meters does the sidewalk occupy?
一个圆形喷泉的周长是56.52米，现准备绕四周铺一条宽1米的人行道，人行道占地多少平方米？
<gadget id="calculator">56.52 / 3.14 / 2</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

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

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">9 ** 2</gadget>
<output>81</output>

<gadget id="calculator">3.14 * 81</gadget>
<output>254.34</output>

<gadget id="calculator">314 - 254.34</gadget>
<output>59.66</output>

<result>59.66</result>