To make a rectangular parallelepiped frame whose ratio of length, width and height is 2:1:3, 360 cm long iron wire is needed; paste a layer of paper on the outside of this rectangular parallelepiped frame, what is its volume in cubic centimeters?
做一个长、宽、高的比是2：1：3的长方体框架，需要360厘米长的铁丝；在这个长方体框架外面糊一层纸，它的体积是多少立方厘米．
<gadget id="calculator">360 / 4</gadget>
<output>90</output>

<gadget id="calculator">2 + 1 + 3</gadget>
<output>6</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">90 * (1/3)</gadget>
<output>30</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">90 * (1/6)</gadget>
<output>15</output>

<gadget id="calculator">90 - 30 - 15</gadget>
<output>45</output>

<gadget id="calculator">30 * 15 * 45</gadget>
<output>20_250</output>

<result>20_250</result>