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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.
The input numbers are so high it turns the answer to a scientific notation in JavaScript. You can easily convert scientific notation to normal only up to e+20. So you have to come up with an algorithm to sum these numbers in another way.