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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.
How to reconcile this in the description?
Size limit says:
0 < smallest number < 1 000 000 000But the example says:
"1234567891" -> [1234567891] -> 1234567891But
1 234 567 891exceeds the "smallest number" limit (??)Base conversion has already been done: see https://www.codewars.com/kata/526a569ca578d7e6e300034e
Also, you didn't specify the character set of the base. It is only inferable from the sample tests.