The tree planters planted 201 poplars this year, three times as many pine trees as poplars. How many pine trees did they plant?
植树工人今年种杨树201棵，种的松树是杨树的3倍，种了多少棵松树？
<gadget id="calculator">201 * 3</gadget>
<output>603</output>

<result>603</result>