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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.
sorry, I have to update as well, as the script failed at the randome test,
8881944899, passed;
but 3882569617, time out
with the help of my friend LS, I did this, let me update the script tomorrow.
now I have a solution for this, even the big number, within 3s to get the result, but now it still stay in math domain, I tried but not converted into java yet.