If a cube with a side length of 15 decimeters is equally divided into three cuboids, how many square centimeters will the surface area of the block increase?
把一个棱长15分米的正方体木块，平均分成三个长方体后，木块的表面积增加多少平方厘米？
<gadget id="calculator">15 * 15 * 4</gadget>
<output>900</output>

<gadget id="calculator">900 * 100</gadget>
<output>90_000</output>

<result>90_000</result>