--- -	2025-03-11 09:48:15.207427000 +0900
+++ out/TL2025_integral.log	2025-03-11 09:32:46.349265256 +0900
@@ -1,4 +1,4 @@
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+This is LuaHBTeX, Version 1.21.0 (TeX Live 2025)  (format=lualatex 2025.3.11)  11 MAR 2025 09:32
  system commands enabled.
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 LaTeX Font Info:    Overwriting symbol font `operators' in version `normal'
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 LaTeX Font Info:    Overwriting symbol font `largesymbols' in version `normal'
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-Output written on TL2025_integral.pdf (1 page, 21109 bytes).
+Output written on TL2025_integral.pdf (1 page, 21120 bytes).
 
 PDF statistics: 78 PDF objects out of 1000 (max. 8388607)
  44 compressed objects within 1 object stream
