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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.
thank you i have checked and refactored my solution
The for loop is redundant, simple if elem in seq is sufficient.
Or you can keep the for loop and change if statement to: if elem == i