If a cube with a side length of 6 cm is sawn into smaller cubes with a side length of 3 cm, how much is the surface area increased?
一个棱长为6cm的正方体木块，如果把它锯成棱长为3cm的小正方体木块，表面积增加了多少？
<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">2 * 1 * 3</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<result>216</result>