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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
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This comment is hidden because it contains spoiler information about the solution
you can use a letter the number of times it is in the second string.
No problem.
Neither 22, 16, 21, 27, 256, 262, 18, 12, 15 nor 9 are prime numbers. Not a kata issue.
no, you don't need any module to solve this (...if that's your actual question)
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Checked it - it still works.
Recheck your code.
What is the error, exactly?
I'm a begginer though... Still learning, this was one of my first codes 😅😅