This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=pdflatex 2026.5.11)  27 AUG 2026 08:52
entering extended mode
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(/usr/share/texlive/texmf-dist/tex/latex/tools/q.tex
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LaTeX2e <2020-10-01> patch level 4
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*** (job aborted, no legal \end found)

 
Here is how much of TeX's memory you used:
 18 strings out of 481008
 495 string characters out of 5909439
 278641 words of memory out of 5000000
 17303 multiletter control sequences out of 15000+600000
 403430 words of font info for 27 fonts, out of 8000000 for 9000
 14 hyphenation exceptions out of 8191
 13i,0n,15p,81b,10s stack positions out of 5000i,500n,10000p,200000b,80000s
!  ==> Fatal error occurred, no output PDF file produced!