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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.
HAAHAHAHAH ya ur right, i was dreaming about solution hehe
the "gotcha" part of this with the whitespacing is not enjoyable.
sort has some very unusual properties in Ruby and defaults to alphanumeric sorting (i.e 6 comes after 500) so you need to sort by number as so:
numbers.split.sort_by(&:to_i)