A cylindrical block of wood. The circumference of the bottom surface is 18.84 cm, and the height is 6 cm. Now cut it into four small cylindrical pieces. So, what is the surface area of these four small cylinders in square centimeters?
一个圆柱体木块．底面周长是18.84厘米，高是6厘米，现在将它截成四个圆柱体小木块．那么，这四个圆柱体小木块的表面积为多少平方厘米？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">3.14 * 9 * 3 * 2</gadget>
<output>169.56</output>

<result>169.56</result>