To paint the sides and top of a cube wooden box with a side length of 10 decimeters, it costs 80 yuan per square meter of paint. How much will it cost at least to paint this wooden box?
给一个棱长是10分米的正方体木箱的四周和顶部刷油漆，每平方米的油漆需要80元，刷好这个木箱至少要花多少钱？
<gadget id="calculator">10 / 10</gadget>
<output>1</output>

<gadget id="calculator">1 * 1 * 5 * 80</gadget>
<output>400</output>

<result>400</result>