wooden rod 50 cm long has a cross-sectional diameter of 2 cm, what is its volume in cubic centimeters?
有一根50厘米长的木棒，它的横截面直径是2厘米，它的体积是多少立方厘米？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

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

<gadget id="calculator">3.14 * 1 * 50</gadget>
<output>157</output>

<result>157</result>