How much iron wire is needed to weld a cuboid frame with a length of 9 decimeters, a width of 5 decimeters, and a height of 2 decimeters?
要焊接一个长9分米，宽5分米，高2分米的长方体框架，需要多少铁丝？
<gadget id="calculator">9 + 5 + 2</gadget>
<output>16</output>

<gadget id="calculator">16 * 4</gadget>
<output>64</output>

<result>64</result>