If a cuboid has a length of 6 cm, a width of 4 cm and a height of 4 cm, what is its surface area in square centimeters?
一个长方体的长是6厘米，宽和高都是4厘米，它的表面积是多少平方厘米．
<gadget id="calculator">6 * 4 * 2</gadget>
<output>48</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">48 + 16</gadget>
<output>64</output>

<gadget id="calculator">64 * 2</gadget>
<output>128</output>

<result>128</result>