A piece of cylindrical wood, after cutting off a small section of 10 cm long, the surface area of the remaining cylindrical wood is reduced by 62.8 square centimeters compared with the original. What is the area of the base of this piece of wood in square centimeters?
一根圆柱形状的木料，截去10厘米长的一小段后，剩下圆柱形木料的表面积比原来减少了62.8平方厘米．这根木料的底面积是多少平方厘米？
<gadget id="calculator">62.8 / 10 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<result>3.14</result>