Three fast, medium and slow cars drive from A to B along the same highway at the same time. On the way, an Autobot is also traveling in the same direction. The three vehicles take 7 minutes, 8 minutes, and 14 minutes to catch up with the Autobot. It is known that the express train is 200 meters faster than the slow train per minute, how much faster is the CRRC than the Autobot per minute?
快、中、慢三辆车同时从A地沿同一公路开往B地，途中有汽车人也在同方向行进，三辆车分别用7分钟、8分钟、14分钟追上汽车人．已知快车比慢车每分钟快200米，求中车每分钟比汽车人快多少？
<gadget id="calculator">14 - 7</gadget>
<output>7</output>

<gadget id="calculator">200 * 7</gadget>
<output>1_400</output>

<gadget id="calculator">14 / 7</gadget>
<output>2</output>

<gadget id="calculator">1_400 * 2</gadget>
<output>2_800</output>

<gadget id="calculator">2_800 / 8</gadget>
<output>350</output>

<result>350</result>