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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.
So... kata-question want me to replace all digits with # except for last 4. WHY THE HELL it show this as an error?!
'########d2eA' should equal '#F$#Dfgsd2eA'
Even so, how the hell i am going to do that? Like:
Here is the random-placed-digits, but we are going to mask them right away without letting you know the original version, try to understand what are those masked ones, good luck!