The "South-to-North Water Diversion" Zhengzhou project is under intense construction, and the project requires 40 meters of greenery on both sides of the river. Jinshui District plans to plant 12 rows of trees in the specified area, with 42 trees in each row. If each sapling costs 8 yuan, how much will it cost to buy these saplings?
"南水北调"郑州工程在紧张的施工中，工程要求河道两侧绿化各40米．金水区准备在规定的区域内植12行树，每行42棵，若每棵树苗8元钱，买这些树苗共需要多少钱？
<gadget id="calculator">12 * 42 * 8</gadget>
<output>4_032</output>

<result>4_032</result>