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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.
Please reread the instructions. You are looking for the number which is not like all the other numbers in the string in terms of evenness or oddness. In other words you are looking for the single odd number or the single even number.
eg:
iqTest("1 2 1 1") => 2 // Second number is even, while the rest of the numbers are odd