The results of the 100-meter race in the sports meeting, Xiaogang 16.4 seconds, Xiaohong 17.1 seconds, who is faster and how many seconds faster?
运动会百米赛跑成绩，小刚16.4秒，小红17.1秒，谁的速度快，快多少秒？
<gadget id="calculator">17.1 - 16.4</gadget>
<output>0.7</output>

<result>0.7</result>