In the 2014 Sochi Winter Olympics, how many colored flags are needed to plant colored flags on a 400-meter-long circular runway of a competition venue, with a colored flag every 4 meters?
在2014年索契冬季奥运会上，要在一个比赛场馆400米长的环形跑道上插彩旗，每隔4米插一面彩旗，需要多少面彩旗？
<gadget id="calculator">400 / 4</gadget>
<output>100</output>

<result>100</result>