Paint six faces of a cuboid 6 cm long, 4 cm wide, and 3 cm high red, and then cut the cuboid into many small cubes with side lengths of 1 cm. There are exactly two faces of these small cubes painted with red. How many red ones are there?
将一个长6厘米、宽4厘米、高3厘米的长方体的六个面都涂上红色，然后把这个长方体切成许多边长为1cm的小正方体，这些小正方体中恰好有两个面涂上红色的有多少个？
<gadget id="calculator">6 - 2</gadget>
<output>4</output>

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

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<gadget id="calculator">16 + 8 + 4</gadget>
<output>28</output>

<result>28</result>