Loading collection data...
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.
Please change the Haskell signature from Int to Integer
Even if the numbers (barely) fit in the type, if you calculate a few more you will overflow, which might be part of your algorithm. Then you will have to deal with casting to fix this.