A steel pipe is 60 cm long, has an inner diameter of 8 cm, and an outer diameter of 10 cm. What is the volume of the pipe in cm**3?
一段钢管长60cm，内直径是8cm，外直径是10cm．这段钢管的体积是多少cm**3？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

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

<gadget id="calculator">3.14 * 25 * 60</gadget>
<output>4_710</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 60</gadget>
<output>3_014.4</output>

<gadget id="calculator">4_710 - 3_014.4</gadget>
<output>1_695.6</output>

<result>1_695.6</result>