There are 2 cuboid pillars in the painting hall. The bottom surface of the pillars is a square with a side length of 3 decimeters, the height of the pillars is 4 meters, and the paint is 4.5 yuan per square meter. How much is the total cost?
油漆大厅中的2根长方体柱子，柱子底面是边长为3分米的正方形，柱子高4米，每平方米油漆4.5元，共要多少元？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * 4 * 4 * 2 * 4.5</gadget>
<output>43.2</output>

<result>43.2</result>