This code needs to be inserted into the LaTeX document where you want the PDF files to be combined.

You can create a new LaTeX document and input the code in the text editor. Make sure to save the file with a ".tex" extension. Then you can compile the file using a LaTeX compiler, such as TeXworks or MikTeX, to generate a single PDF document that contains both of your input PDF files.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence