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.
Nice. You should however choose another variable for 'sum' - you are shadowing Python's "sum".
Nice. I didn't think to start at 1,1.
ooohhhh nice, removed the unnecessary comparison from loop
It's the best code l have seen so far