% $B$3$N%U%!%$%k$OG[I[$9$k%U%!%$%k$NNL$r8:$i$9$?$a$K!$(Bsample.tex $B$r%H%j%C%-!<(B
% $B$JJ}K!$GEj9FMQ$G=PNO$9$k!#<B:]$K$O(B sample.tex $B$N(B \documentclass $B$K(B draft 
% $B%*%W%7%g%s$r$D$1$?$b$N$,@5$7$$%5%s%W%k$G$"$k!#(B
%
\documentclass[draft]{ipsjpapers}
\makeatletter
\def\documentclass#1{}
\input{sample}