The length, width, and height of a cuboid are 9 decimeters, 7.5 decimeters, and 3 decimeters respectively. What is the sum of the lengths of the sides in centimeters?
一个长方体的长、宽、高分别是9分米，7.5分米、3分米，棱长总和是多少厘米？
<gadget id="calculator">9 + 7.5 + 3</gadget>
<output>19.5</output>

<gadget id="calculator">19.5 * 4 * 10</gadget>
<output>780</output>

<result>780</result>