There is a row of willows planted by the river, and the distance between every two trees is 4 meters. How many meters did Xiao Ming run from the first tree to the 200th tree?
河边种着一排杨柳，每两棵树之间相距4米，小明从第1棵跑到第200棵，一共跑了多少米？
<gadget id="calculator">200 - 1</gadget>
<output>199</output>

<gadget id="calculator">199 * 4</gadget>
<output>796</output>

<result>796</result>