A cuboid piece of wood is 50 decimeters long, and its cross section is a square with a side length of 0.8 meters. What is the volume of this piece of wood in cubic decimeters?
一根长方体木料长50分米，横截面是一个边长为0.8米的正方形，这根木料的体积是多少立方分米．
<gadget id="calculator">0.8 * 10</gadget>
<output>8</output>

<gadget id="calculator">8 * 8 * 50</gadget>
<output>3_200</output>

<result>3_200</result>