If a cuboid wood with a length of 15 meters, a width of 2 meters and a height of 0.5 meters is cut into two sections perpendicular to the length, what will be the change in the surface area?
把一根长15米、宽2米、高0.5米的长方体木料垂直于长截成两段，表面积有什么样的变化？
<gadget id="calculator">2 * 0.5 * 2</gadget>
<output>2</output>

<result>2</result>