The length of a cuboid is 6 cm, the width is 5 cm, and the height is 3 cm. What is the sum of the lengths of the sides of this cuboid?
一个长方体的长是6cm，宽是5cm，高是3cm，则这个长方体的棱长之和是多少？
<gadget id="calculator">6 + 5 + 3</gadget>
<output>14</output>

<gadget id="calculator">14 * 4</gadget>
<output>56</output>

<result>56</result>