If a piece of paper with a length of 18.84 cm and a width of 12.56 cm is surrounded into a cylinder, what is the maximum possible volume of the formed cylinder?
把一张长18.84厘米、宽12.56厘米的纸围成一个圆柱，围成的圆柱体体积最大可能是多少．
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3.14 * 9 * 12.56</gadget>
<output>354.9456</output>

<result>354.9456</result>