I was once received a modified version of FizzBuzz (the word is replaced by company name) for my coding interview (via email). I told the HR person that I know

I was once received a modified version of FizzBuzz (the word is replaced by company name) for my coding interview (via email). I told the HR person that I know the problem already, expected to have another more challenge problem. She asked do it anyway. I gave them my solution, but, well, my interesting in that company has gone.