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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.
In the description:
AB[2[3CD]] -> ABCDCDCDshould be
AB[2[3CD]] -> ABCDCDCDCDCDCDThere will only be captical letter, numbers and brackets('[' and ']') in the message.
Try : There will only be capital letters, numbers, and square brackets.
When there's a block of code inside brackets, such as [39ABC], it means you need to repeat the letters(ABC) n(39) times.
I am unsure what n(39) refers to; maybe just say 39 times?
You final message will only consists of capital letters.
Try: Your final message will only consist of capital letters.
Almost duplicate of this