If two cubes with side lengths of 7 cm are put together to form a cuboid, how much is the surface area reduced?
把两个棱长为7cm的正方体，拼成一个长方体，表面积减少了多少．
<gadget id="calculator">7 * 7 * 2</gadget>
<output>98</output>

<result>98</result>