Jiaming Central Elementary School has a circular pool with a perimeter of 31.4 meters. Now the school is beautifying the campus and plans to build a lawn with a width of 1 meter around this circular pool. How many square meters is the lawn?
嘉明中心小学校有一个周长是31.4米的圆形水池，现在学校进行校园的美化，准备在这个圆形水池的周围修一条宽1米的草坪，这个草坪的面积是多少平方米？
<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

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

<gadget id="calculator">36 - 25</gadget>
<output>11</output>

<gadget id="calculator">3.14 * 11</gadget>
<output>34.54</output>

<result>34.54</result>