There is a parallelogram billboard with a height of 6.5 decimeters and a base of 8 decimeters. If 50 grams of paint is used per square decimeter to paint this billboard, how many grams of paint should be prepared at least?
有一块平行四边形的广告牌，高是6.5分米，底是8分米．如果油漆这块广告牌每平方分米用油漆50克，则至少要准备多少克油漆？
<gadget id="calculator">8 * 6.5</gadget>
<output>52</output>

<gadget id="calculator">52 * 50</gadget>
<output>2_600</output>

<result>2_600</result>