What is the surface area of a cuboid whose length, width, and height are 6 cm, 5 cm, and 4 cm, respectively?
长、宽、高分别为6厘米、5厘米、4厘米的长方体的表面积是多少平方厘米．
<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">30 + 24 + 20</gadget>
<output>74</output>

<gadget id="calculator">74 * 2</gadget>
<output>148</output>

<result>148</result>