On a small road parallel to the railway, a group of pedestrians and cyclists are traveling south at the same time. The speed of pedestrians is 1 m/s, and the speed of cyclists is 3 m/s. At this time, a train comes from behind them. , the train takes 22 seconds to pass pedestrians, and 26 seconds to pass cyclists. What is the total length of the train body?
铁路旁的一条与铁路平行的小路上，有一行人与骑车人同时向南行进，行人速度为1米/秒，骑车人速度为3米/秒，这时有一列火车从他们背后开过来，火车通过行人用22秒，通过骑车人用26秒，这列火车的车身总长是多少？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">1 / 22</gadget>
<output>1/22 = around 0.045455</output>

<gadget id="calculator">1 / 26</gadget>
<output>1/26 = around 0.038462</output>

<gadget id="calculator">(1/22) - (1/26)</gadget>
<output>1/143 = around 0.006993</output>

<gadget id="calculator">2 / (1/143)</gadget>
<output>286</output>

<result>286</result>