The way the app works is, for example, let's say there are up to 6 balls.
So far, number 6 has appeared 6 times, and number 5 has appeared 5 times.... Assuming that the number 6 appears 5 times, the number of times 6 appears is set to 6, number 5 is set to 5, and similarly, number 1 is set to 1.
Then, the same number may appear multiple times, but this app is designed internally to automatically regenerate the same number so that it does not appear.
The big data of this app was collected only from the 733rd time when the lottery machine was last changed.