There are 2 square columns in the hall of the school, each square column is 4 meters high, and the ground is a square with a side length of 0.5 meters. If marble is to be pasted around each column, how many square meters will the marble be pasted on?
学校门厅里有2根方柱，每根方柱高4米，地面都是边长0.5米的正方形．如果要在每根柱子四周贴上大理石，贴大理石的面积是多少平方米？
<gadget id="calculator">0.5 * 4 * 4 * 2</gadget>
<output>16</output>

<result>16</result>