Please don't post solution in discourse. The solution page is here for that. If you have any question, ask a question. And in all cases use a spoiler flag if you post code in a comment.

Nim attempt tests throw warnings:

STDERR
/workspace/solution_tests.nim(22, 6) template/generic instantiation of `test` from here
/workspace/solution_tests.nim(24, 23) Warning: Deprecated since v0.18.0; use 'rand' instead; random is deprecated [Deprecated]
/workspace/solution_tests.nim(22, 6) template/generic instantiation of `test` from here
/workspace/solution_tests.nim(25, 33) Warning: Deprecated since v0.18.0; use 'sample' instead; random is deprecated [Deprecated]
/workspace/solution_tests.nim(22, 6) template/generic instantiation of `test` from here
/workspace/solution_tests.nim(25, 32) template/generic instantiation of `random` from here
/opt/nim/lib/pure/random.nim(231, 14) Warning: Deprecated since v0.18.0; use 'rand' instead; random is deprecated [Deprecated]
/workspace/solution_tests.nim(22, 6) template/generic instantiation of `test` from here
/workspace/solution_tests.nim(25, 32) template/generic instantiation of `random` from here
/opt/nim/lib/pure/random.nim(231, 20) template/generic instantiation of `random` from here
/opt/nim/lib/pure/random.nim(227, 14) Warning: Deprecated since v0.18.0; use 'rand' instead; random is deprecated [Deprecated]

Don't return print(whatever...

Just return.

More than 3000 persons (and I) have solved this kata in PHP and had no problem. Do not raise an issue without substantial arguments: logs, example of failed cases, code (with a spoiler flag)... Your code not working and you don't know why is not a kata issue. See here if it may help: https://docs.codewars.com/training/troubleshooting

NO, IT'S BECAUSE UPCASE LETTERS HURT THE EYES.

I've seen some pretty good and elegant solutions (better than mine), there, congratz everyone!

i'm asking myself the same question