This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian) (preloaded format=pdflatex 2017.9.6)  31 JAN 2018 10:37
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(/usr/share/texlive/texmf-dist/tex/latex/tools/x.tex
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l.1 
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