piece of iron wire of how many centimeters long can just make a cuboid frame with a length of 6 centimeters, a width of 5 centimeters, and a height of 2 centimeters.
一条长多少厘米的铁丝正好可以做成一个长6厘米，宽5厘米，高2厘米的长方体框架．
<gadget id="calculator">6 + 5 + 2</gadget>
<output>13</output>

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

<result>52</result>