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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.
I think you don't have correctly understood the kata. The description says:
You have to solve an equation not an inequation.
48 choose 11
gives22595200368
, not6540715897
and34 choose 4
gives46376
not5985
.BTW thanks for the links!