How many centimeters of iron wire are needed to weld a cuboid with a length of 10 cm, a width of 9 cm, and a height of 6.5 cm?
要焊接一个长10厘米，宽9厘米，高6.5厘米的长方体，需多少厘米的铁丝．
<gadget id="calculator">10 + 9 + 6.5</gadget>
<output>25.5</output>

<gadget id="calculator">25.5 * 4</gadget>
<output>102</output>

<result>102</result>