To make a rectangular parallelepiped frame, the length is 5 decimeters, the width is 6 decimeters, and the height is 2 decimeters. How long is the iron wire?
做一个长方体框架，长5分米，宽6分米，高2分米，要用多长的铁丝？
<gadget id="calculator">5 + 6 + 2</gadget>
<output>13</output>

<gadget id="calculator">13 * 4</gadget>
<output>52</output>

<result>52</result>