A cuboid has a length of 6dm, a width of 5dm, and a height of 3dm. What is the sum of the lengths of the sides of the cuboid in dm?
一个长方体长6dm，宽5dm，高3dm，这个长方体的棱长总和是多少dm
<gadget id="calculator">6 + 5 + 3</gadget>
<output>14</output>

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

<result>56</result>