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%% copied from plain.tex {{
\catcode`\{=1 % left brace is begin-group character
\catcode`\}=2 % right brace is end-group character
\catcode`\$=3 % dollar sign is math shift
\catcode`\&=4 % ampersand is alignment tab
\catcode`\#=6 % hash mark is macro parameter character
\catcode`\^=7 \catcode`\^^K=7 % circumflex and uparrow are for superscripts
% \catcode`\_=8 \catcode`\^^A=8 % underline and downarrow are for subscripts
\catcode`\^^I=10 % ascii tab is a blank space
\chardef\active=13 \catcode`\~=\active % tilde is active
\catcode`\^^L=\active \outer\def^^L{\par} % ascii form-feed is "\outer\par"
\def\loop#1\repeat{\def\body{#1}\iterate}
\def\iterate{\body \let\next\iterate \else\let\next\relax\fi \next}
\let\repeat=\fi % this makes \loop...\if...\repeat skippable
%% }}
\def\includeImage #1 #2 #3 {
\count1=0
\count2=#2
\count3=#3
\loop
\shipout\vbox{
\count0=0
\hsize=20cm
\indent
\loop
\immediate\pdfximage width 1cm height 1cm {#1}
\hbox{\pdfrefximage\pdflastximage}
\hskip 0pt plus \hsize
\advance\count0 1
\ifnum\count0 < \count2 \repeat
}
\advance\count1 1
\ifnum\count1 < \count3 \repeat
}
\pdfoutput=1
\batchmode
\endinput
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