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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.
This is what I ended up with, I massively over-complicated it, shows that reading the description very carefully helps!
I did the same. It will work if the age limit is changed and you can even check for year/years using regex.
Neat answer to utilize
I think he missed the part where it said "THE FIRST letter will always be the age"
You brought the wrong tool to the job.
dunmbo
a little overkill?