A cuboid chalk box is 9 cm long, 6 cm wide, and 7 cm high. What is the sum of its sides in cm?
一个长方体的粉笔盒，长9厘米，宽6厘米，高7厘米，它的棱长和是多少厘米．
<gadget id="calculator">9 + 6 + 7</gadget>
<output>22</output>

<gadget id="calculator">22 * 4</gadget>
<output>88</output>

<result>88</result>