Use iron wire to make a cuboid frame whose length, width, and height are 5cm, 4cm, and 3cm respectively. How many centimeters of iron wire are needed at least?
用铁丝做一个长、宽、高分别是5cm、4cm和3cm的长方体框架，至少需要多少厘米的铁丝．
<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

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

<result>48</result>