A road is 400 meters long. On one side of the road, a colored flag is planted every 4 meters. How many colored flags are planted in total including both ends?
一条路长400米，在路的一边每隔4米插一面彩旗，连两端在内，一共插多少面彩旗？
<gadget id="calculator">400 / 4</gadget>
<output>100</output>

<gadget id="calculator">100 + 1</gadget>
<output>101</output>

<result>101</result>