Can anyone explain how the answer is 4?

Question

https://code.sololearn.com/cItPHy09KALu/?ref=app

Answer 1

The while loop is executed only once, because val never becomes bigger than 25.

So val start from 1 and it is auto-incremented three times: result is 4!

Answer 2

Initially, val is 1. Then the do loop is executed and val is incremented two times (val=3). Then the while condition is checked for the first time. It contains another increment, so val is 4 now. 4 > 25 is false and the loop is not executed again

Answer 3

Thanks a lot,I get it now