A cuboid has a length of 5 cm, a width of 4 cm, and a height of 3 cm. What is the sum of the lengths of its sides in cm?
一个长方体的长5厘米，宽4厘米，高3厘米，它的棱长总和是多少厘米．
<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>