Thank you for sharing.
milliseconds
I took a look at the Chinese forum: really strange. That's why your thread is more appreciable.
Of course you should be a genius at least 10 times more than Erel:
View attachment 71898
7 years old!

Well, its my son's age
[At the age of 7 I only knew the "multiplication tables" (but only because at that time there were no smartphones

]