The length of a cuboid frame is 30 cm, the width is 20 cm, and the height is 15 cm. To make such a frame, how many centimeters of wood do you need at least?
一个长方体框架的长是30厘米，宽是20厘米，高是15厘米，制作这样的一个框架，至少要多少厘米长的木条？
<gadget id="calculator">30 + 20 + 15</gadget>
<output>65</output>

<gadget id="calculator">65 * 4</gadget>
<output>260</output>

<result>260</result>