In the handicraft class, Wenwen made three storage boxes without covers, 29cm long, 16cm wide, and 14cm high. How many square decimeters of hard paper are needed for these three storage boxes?
在手工课上，文文做了三个无盖的收纳盒，长29cm、宽16cm，高14cm，这三个收纳盒需硬纸多少平方分米？
<gadget id="calculator">29 * 16</gadget>
<output>464</output>

<gadget id="calculator">29 * 14</gadget>
<output>406</output>

<gadget id="calculator">16 * 14</gadget>
<output>224</output>

<gadget id="calculator">406 + 224</gadget>
<output>630</output>

<gadget id="calculator">630 * 2</gadget>
<output>1_260</output>

<gadget id="calculator">464 + 1_260</gadget>
<output>1_724</output>

<gadget id="calculator">1_724 * 3</gadget>
<output>5_172</output>

<result>5_172</result>