A cuboid whose length is 18 decimeters, width is 7 decimeters, and height is 12 decimeters, what is the sum of its edge lengths?
一个长是18分米，宽是7分米，高是12分米的长方体，它的棱长总和是多少？
<gadget id="calculator">18 + 7 + 12</gadget>
<output>37</output>

<gadget id="calculator">37 * 4</gadget>
<output>148</output>

<result>148</result>