It is known that the sum of the lengths of the sides of a cuboid is 160 cm, and the ratio of length, width and height is 2:1:1. Please calculate the volume of this cuboid?
已知长方体的棱长总和是160厘米，长宽高的比是2：1：1，请你算算这个长方体的体积是多少？
<gadget id="calculator">2 + 1 + 1</gadget>
<output>4</output>

<gadget id="calculator">160 / 4</gadget>
<output>40</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">40 * (1/2)</gadget>
<output>20</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">40 * (1/4)</gadget>
<output>10</output>

<gadget id="calculator">20 * 10 * 10</gadget>
<output>2_000</output>

<result>2_000</result>