Wang Hua is 140 cm tall, and the door of the classroom is 2 meters high. Who is taller? How many centimeters is it high?
王华身高140厘米，教室的门高2米，谁高？高多少厘米？
<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">200 - 140</gadget>
<output>60</output>

<result>60</result>