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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.
Cause generally it's good practice to add a newline when you've finished printing something in the terminal.
It would be good to specify in the description that the result does not need a newline character.
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My approach was reading a bit about optional arguments in a function. You could start there and work your way to the solution!
Nice! Learned something new today!
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I think this kata should contain a hint in the description, about when a number can be expressed as the sum of consecutive numbers, to be ranked as 7kyu.