Welding a cuboid lantern frame with a length of 4cm, a width of 5cm, and a height of 3cm (ignoring the joints), how much iron wire is needed?
焊接一个长为4cm，宽为5cm，高为3cm的长方体灯笼框架(接头处忽略不计)，需要多少的铁丝？
<gadget id="calculator">4 + 5 + 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>