Advanced stopwatch

in this app if we click the start button the stop watch should start running in the app we have buttons like 5 , 10 , 15 etc if we press the "5" button 5 seconds should be added to the time at last when we click the stop button the stop should stop and there will be a textbox appearing in that it will ask the participant name so if we enter the name the time along with the participant name should b stored in cloud DB and when they press get results button it should show the all the stored data in cloud DB(which is the time with participants name)

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