The length of a cuboid is 10dm, the width is 3dm, and the height is 5dm, what is its surface area dm**2.
一个长方体的长是10dm，宽是3dm，高是5dm，它的表面积是多少dm**2．
<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<gadget id="calculator">30 + 15 + 50</gadget>
<output>95</output>

<gadget id="calculator">95 * 2</gadget>
<output>190</output>

<result>190</result>