Xiaogang, Xiaohua and Xiaoxin had a 50-meter race. The results are as follows: Xiaogang: 7.15 seconds; Xiaohua: 6.88 seconds; Xiaoxin: 7.19 seconds. Who is the first? How many seconds was he faster than third place?
小刚，小华和小新进行了一次50米赛跑，成绩如下：小刚：7.15秒；小华：6.88秒；小新：7.19秒，谁是第一名？他比第三名快了多少秒？
<gadget id="calculator">7.19 - 6.88</gadget>
<output>0.31</output>

<result>0.31</result>