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    Oh I apologize for the misuse, I will pay attention next time, it's my first time using this tool. Thank you for helping me out !

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    Please read the error message:

    Fatal error: Can't form Range with upperBound < lowerBound
    

    That's a problem with your code, not a kata issue. Use Question label next time.

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    This comment is hidden because it contains spoiler information about the solution