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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.
You failed on input
1239125and12399125.1239125The expected result is:
1239321Result from your function:
124042112399125The expected result is:
12399321Result from your function:
12400421Not a kata issue, marking as resolved.