The school will build a circular flower bed with a circumference of 25.12 meters, and pave a circular path with a width of 1 meter around it. Please calculate how much land this path occupies?
学校要建一个周长25.12米的圆形花坛，在它的周围铺一条1米宽的环形的小路，请你计算一下，这条小路占地多大？
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">25.12 / 6.28</gadget>
<output>4</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">25 - 16</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<result>28.26</result>