verbatimtex
%&latex
\documentclass{article}
\usepackage{color}
\begin{document}
etex

input geometriesyr16;
marque_r:=25;
marque_a:=10;
marque_p:="plein";
figure(0,0,u,u);
trace feuillet withcolor gris;
label(btex \huge ABC etex,u*(0.5,0.5));
fin;
_nfig:=2;
figure(0,0,u,u);
trace feuillet withcolor gris;
label(btex \large$a\stackrel{\textcolor{red}{?}}{=}b$ etex,u*(0.5,0.5));
fin;
end