After sawing a cross-section of a piece of wood with a side length of 5 cm and a length of 2 meters into 4 sections, how many square centimeters will the surface area increase compared to the original one?
把一个横截面的边长为5厘米，长为2米的木料锯成4段后，表面积比原来增加了多少平方厘米．
<gadget id="calculator">5 * 5 * 6</gadget>
<output>150</output>

<result>150</result>