<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass[12pt]{ltjsarticle}
\usepackage[no-math]{fontspec}
\usepackage[deluxe,haranoaji]{luatexja-preset}
\usepackage{graphicx,xcolor}
\usepackage{newpxtext,newpxmath}
\usepackage{amsmath}
\usepackage[a6paper]{geometry}
\begin{document}
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\[e^{i\pi}=-1\]
\end{document}
</pre></body></html>