cuboid block with a height of 15 cm is just cross-sawed into three small cubes of equal size. How many square centimeters does its surface area increase from the surface area of the original cuboid?
一个高是15厘米的长方体木块正好横锯成三个大小相等的小正方体，它的表面积和比原来长方体的表面积增加了多少平方厘米？
<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 4</gadget>
<output>100</output>

<result>100</result>