When 5 randomly selected numbers are arranged in order of size among 10 numbers, it is a game in which the middle number is guessed. If you answer correctly, the clicked cell turns blue and points are added continuously, but if you skip or don't answer correctly, the clicked cell turns red and all cells become blocked and you cannot proceed further. When you click Cumulative Usage Time, the total time calculation starts, and when you click End, the total time is saved.