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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.
your solution does not work for very large input numbers, it is affected by integer overflow. find a way to rewrite or rearrange the calculation being performed.
some languages, e.g. Java, require avoiding integer overflow, while others, e.g. C, do not.
the description does not warn about very large inputs.
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