There are 64 pine trees in the park, which are 16 fewer than willow trees. The number of poplar trees is equal to three times the sum of pine trees and willow trees. How many poplar trees are there in the park?
公园里有松树64棵，比柳树少16棵，杨树的棵数等于松树、柳树棵数和的3倍，公园里有杨树多少棵？
<gadget id="calculator">64 + 16 + 64</gadget>
<output>144</output>

<gadget id="calculator">144 * 3</gadget>
<output>432</output>

<result>432</result>