There exist many comments amounting to the same message as yours.
They are almost all about an incorrect observation. You're going to get an identical answer/reference to existing answers unless you add more information so that it is no longer the same comment as those others.

If you provide a way to reproduce your observation (your code), others can point out the problem. Better for everyone.

I am looking on log that is above my code.
And yes, I've read comments for more than a minute and spent two hours of thinking and coding, so, please, keep your assumptions about my time away.
This was not helpful at all.
Thanks anyways for replying.

That's because you're reading the logs incorrectly. Take 1 minute and have a look at hundred other comments with similar questions.

I don't get it..
Input: a = {2,2,3}, b = {4,9,9}. b is obviously not a squared.
Expected: true.....

While my last version was checking if all elements in b are squares of some number in a, this failed another similar test.

I don't get the point of this exersise.

Print the input.

Read this: https://github.com/codewars/codewars.com/wiki/Troubleshooting-your-solution#print-input
Also reading the post (and the replies) below yours will help you.

hello I'm new here, I'm wondering how would I know the variables in the instance that I'm failing because in the basic test and random test I past it all except one in the basic test I can't think in what instance I'm failing