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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.
Fixed.
I knew it will be a one liver through Linq meanwhile my solution is like tens of lines lol
Now do it with 90 numbers !
There was no requirement to check input, so this solution is optimal.
People who master the arts of Linq see the world in a different perspective ^^
simple
This comment is hidden because it contains spoiler information about the solution
The problem has a slight issue with negative numbers.
It expects the number -100000 to be displayed as -,100,000 instead of -100,000