\typeout{Document Style Option 'acmproc' -- Released 20 December 1988}


% \oddsidemargin -10pt \evensidemargin -10pt
\oddsidemargin -0.25in \evensidemargin -0.25in
% \topmargin -47pt \headheight 12pt \headsep 25pt \footheight 12pt \footskip 75pt 
\topmargin -0.25in \headheight 0in \headsep 0in
% \footheight 12pt \footskip 0.5in

\textheight 9.00in \textwidth 7.0in \columnsep .33in \columnseprule 0pt 


\def\@oddhead{}
\def\@evenhead{}
\def\@oddfoot{}
\def\@evenfoot{}

\renewcommand{\and}{%%                             % \begin{tabular} 
\end{tabular}\hskip 1em plus .10fil\begin{tabular}[t]{c}%% \end{tabular}
}


\def\maketitle{\par
 \begingroup
 \def\thefootnote{\fnsymbol{footnote}}
 \def\@makefnmark{\hbox 
 to 0pt{$^{\@thefnmark}$\hss}} 
 \twocolumn[\@maketitle] 
 \@thanks
 \endgroup
 \setcounter{footnote}{0}
 \let\maketitle\relax
 \let\@maketitle\relax
 \gdef\@thanks{}\gdef\@author{}\gdef\@title{}\let\thanks\relax}
\def\@maketitle{\vbox to 2.0in{\hsize\textwidth 
 \linewidth\hsize \vfil \centering
 {\Large\bf \@title \par} \vskip 2em {\normalsize \begin{tabular}[t]{c}\@author
\end{tabular}\par} 
 \vfil} \vskip 2em}

\def\copyrightspace{\footnotetext[0]{\mbox{}\vrule height 0.75in width 0pt}}

\def\abstract{\section*{Abstract}}
\def\endabstract{\par}

\twocolumn 
\sloppy
\parindent 1em
\leftmargini 2em
\leftmargin\leftmargini 
\leftmarginv .5em
\leftmarginvi .5em
\flushbottom