Duoduo participated in the winter long-distance running competition, and set up a service station every 500 meters from the start (there is also one at the starting point). When Duoduo saw the fifth service station, how many meters did he run?
多多参加冬季长跑比赛，从出发开始每隔500米设一个服务站(出发点也有一个)，当多多看到第5个服务站时，他跑了多少米？
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">500 * 4</gadget>
<output>2_000</output>

<result>2_000</result>