[tex-live] Content shifted to the right

[André Hänsel]

Hi list,

I ran this simple tex file:
\special{papersize=80mm,32.5mm}
\parindent=0sp
\hbox to 80mm{
\hbox to 40mm{\vbox to 32.5mm{Hello left.\vfill}\hfill}
\hbox to 40mm{\vbox to 32.5mm{Hello right.\vfill}\hfill}
}
\bye

by the TeX Live command: 
tex label.tex && dvipdf label.dvi

and got the attached PDF.

I'd expect the "Hello left" starting at the very left border but the content
is shifted to the right. Where is my mistake?

Regards,
André
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