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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.
Not a kata issue.
Your solution doesn't work with negative numbers.
Hey Mohamed,
From what I could see, your first for loop doesn't cover the entire length of numbers. That is, all elements in numbers are added into list except numbers[0] because your condition (i > 0), you should instead make it (i > -1). Try it if the extra coverage helps with the random test case.
Not an issue but a problem with your code.
The first string should end with the second (whole) string