%%
%% This is file `article.cls',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% classes.dtx  (with options: `article')
%%
%% This is a generated file.
%%
%% Copyright 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
%% The LaTeX3 Project and any individual authors listed elsewhere
%% in this file.
%%
%% This file was generated from file(s) of the LaTeX base system.
%% --------------------------------------------------------------
%%
%% It may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2003/12/01 or later.
%%
%% This file has the LPPL maintenance status "maintained".
%%
%% This file may only be distributed together with a copy of the LaTeX
%% base system. You may however distribute the LaTeX base system without
%% such generated files.
%%
%% The list of all files belonging to the LaTeX base distribution is
%% given in the file `manifest.txt'. See also `legal.txt' for additional
%% information.
%%
%% The list of derived (unpacked) files belonging to the distribution
%% and covered by LPPL is defined by the unpacking scripts (with
%% extension .ins) which are part of the distribution.
%% \CharacterTable
%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%%   Digits        \0\1\2\3\4\5\6\7\8\9
%%   Exclamation   \!     Double quote  \"     Hash (number) \#
%%   Dollar        \$     Percent       \%     Ampersand     \&
%%   Acute accent  \'     Left paren    \(     Right paren   \)
%%   Asterisk      \*     Plus          \+     Comma         \,
%%   Minus         \-     Point         \.     Solidus       \/
%%   Colon         \:     Semicolon     \;     Less than     \<
%%   Equals        \=     Greater than  \>     Question mark \?
%%   Commercial at \@     Left bracket  \[     Backslash     \\
%%   Right bracket \]     Circumflex    \^     Underscore    \_
%%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%%   Right brace   \}     Tilde         \~}
\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesClass{sample}
             [2006/02/16
Standard LaTeX document class article modified]
\RequirePackage{amsmath}
\RequirePackage{amssymb}
\RequirePackage{latexsym}
\RequirePackage{eucal}
\RequirePackage{verbatim}
\RequirePackage{enumerate}
\RequirePackage{xspace}

\newcommand\@ptsize{}
\newif\if@restonecol
\newif\if@titlepage
\@titlepagefalse
\if@compatibility\else
\DeclareOption{a4paper}
  {\setlength\paperheight {297mm}%
   \setlength\paperwidth  {210mm}}
\DeclareOption{a5paper}
  {\setlength\paperheight {210mm}%
   \setlength\paperwidth  {148mm}}
\DeclareOption{b5paper}
  {\setlength\paperheight {250mm}%
   \setlength\paperwidth  {176mm}}
\DeclareOption{letterpaper}
  {\setlength\paperheight {11in}%
   \setlength\paperwidth  {8.5in}}
\DeclareOption{legalpaper}
  {\setlength\paperheight {14in}%
   \setlength\paperwidth  {8.5in}}
\DeclareOption{executivepaper}
  {\setlength\paperheight {10.5in}%
   \setlength\paperwidth  {7.25in}}
\DeclareOption{landscape}
  {\setlength\@tempdima   {\paperheight}%
   \setlength\paperheight {\paperwidth}%
   \setlength\paperwidth  {\@tempdima}}
\fi
\if@compatibility
 \renewcommand\@ptsize{0}
\else
\DeclareOption{10pt}{\renewcommand\@ptsize{0}}
\fi
\DeclareOption{11pt}{\renewcommand\@ptsize{1}}
\DeclareOption{12pt}{\renewcommand\@ptsize{2}}
\if@compatibility\else
\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
\fi
\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
\DeclareOption{draft}{\setlength\overfullrule{5pt}}
\if@compatibility\else
\DeclareOption{final}{\setlength\overfullrule{0pt}}
\fi
\DeclareOption{titlepage}{\@titlepagetrue}
\if@compatibility\else
\DeclareOption{notitlepage}{\@titlepagefalse}
\fi
\if@compatibility\else
\DeclareOption{onecolumn}{\@twocolumnfalse}
\fi
\DeclareOption{twocolumn}{\@twocolumntrue}
\DeclareOption{leqno}{\input{leqno.clo}}
\DeclareOption{fleqn}{\input{fleqn.clo}}
\DeclareOption{openbib}{%
 \AtEndOfPackage{%
  \renewcommand\@openbib@code{%
     \advance\leftmargin\bibindent
     \itemindent -\bibindent
     \listparindent \itemindent
     \parsep \z@
     }%
  \renewcommand\newblock{\par}}%
}
\ExecuteOptions{letterpaper,10pt,oneside,onecolumn,final}
\ProcessOptions
\input{size1\@ptsize.clo}
\setlength\lineskip{1\p@}
\setlength\normallineskip{1\p@}
\renewcommand\baselinestretch{}
\setlength\parskip{0\p@ \@plus \p@}
\@lowpenalty   51
\@medpenalty  151
\@highpenalty 301
\setcounter{topnumber}{2}
\renewcommand\topfraction{.7}
\setcounter{bottomnumber}{1}
\renewcommand\bottomfraction{.3}
\setcounter{totalnumber}{3}
\renewcommand\textfraction{.2}
\renewcommand\floatpagefraction{.5}
\setcounter{dbltopnumber}{2}
\renewcommand\dbltopfraction{.7}
\renewcommand\dblfloatpagefraction{.5}
\if@twoside
 \def\ps@headings{%
     \let\@oddfoot\@empty\let\@evenfoot\@empty
     \def\@evenhead{\thepage\hfil\slshape\leftmark}%
     \def\@oddhead{{\slshape\rightmark}\hfil\thepage}%
     \let\@mkboth\markboth
   \def\sectionmark##1{%
     \markboth {\MakeUppercase{%
       \ifnum \c@secnumdepth >\z@
         \thesection\quad
       \fi
       ##1}}{}}%
   \def\subsectionmark##1{%
     \markright {%
       \ifnum \c@secnumdepth >\@ne
         \thesubsection\quad
       \fi
       ##1}}}
\else
 \def\ps@headings{%
   \let\@oddfoot\@empty
   \def\@oddhead{{\slshape\rightmark}\hfil\thepage}%
   \let\@mkboth\markboth
   \def\sectionmark##1{%
     \markright {\MakeUppercase{%
       \ifnum \c@secnumdepth >\m@ne
         \thesection\quad
       \fi
       ##1}}}}
\fi
\def\ps@myheadings{%
   \let\@oddfoot\@empty\let\@evenfoot\@empty
   \def\@evenhead{\thepage\hfil\slshape\leftmark}%
   \def\@oddhead{{\slshape\rightmark}\hfil\thepage}%
   \let\@mkboth\@gobbletwo
   \let\sectionmark\@gobble
   \let\subsectionmark\@gobble
   }
 \if@titlepage
 \newcommand\maketitle{\begin{titlepage}%
 \let\footnotesize\small
 \let\footnoterule\relax
 \let \footnote \thanks
 \null\vfil
 \vskip 60\p@
 \begin{center}%
   {\LARGE \@title \par}%
   \vskip 3em%
   {\large
    \lineskip .75em%
     \begin{tabular}[t]{c}%
       \@author
     \end{tabular}\par}%
     \vskip 1.5em%
   {\large \@date \par}%       % Set date in \large size.
 \end{center}\par
 \@thanks
 \vfil\null
 \end{titlepage}%
 \setcounter{footnote}{0}%
 \global\let\thanks\relax
 \global\let\maketitle\relax
 \global\let\@thanks\@empty
 \global\let\@author\@empty
 \global\let\@date\@empty
 \global\let\@title\@empty
 \global\let\title\relax
 \global\let\author\relax
 \global\let\date\relax
 \global\let\and\relax
}
\else
\newcommand\maketitle{\par
 \begingroup
   \renewcommand\thefootnote{\@fnsymbol\c@footnote}%
   \def\@makefnmark{\rlap{\@textsuperscript{\normalfont\@thefnmark}}}%
   \long\def\@makefntext##1{\parindent 1em\noindent
           \hb@[email protected]{%
               \hss\@textsuperscript{\normalfont\@thefnmark}}##1}%
   \if@twocolumn
     \ifnum \col@number=\@ne
       \@maketitle
     \else
       \twocolumn[\@maketitle]%
     \fi
   \else
     \newpage
     \global\@topnum\z@   % Prevents figures from going at top of page.
     \@maketitle
   \fi
   \thispagestyle{plain}\@thanks
 \endgroup
 \setcounter{footnote}{0}%
 \global\let\thanks\relax
 \global\let\maketitle\relax
 \global\let\@maketitle\relax
 \global\let\@thanks\@empty
 \global\let\@author\@empty
 \global\let\@date\@empty
 \global\let\@title\@empty
 \global\let\title\relax
 \global\let\author\relax
 \global\let\date\relax
 \global\let\and\relax
}
\def\@maketitle{%
 \newpage
 \null
 \vskip 2em%
 \begin{center}%
 \let \footnote \thanks
   {\LARGE \@title \par}%
   \vskip 1.5em%
   {\large
     \lineskip .5em%
     \begin{tabular}[t]{c}%
       \@author
     \end{tabular}\par}%
   \vskip 1em%
   {\large \@date}%
 \end{center}%
 \par
 \vskip 1.5em}
\fi
\setcounter{secnumdepth}{3}
\newcounter {part}
\newcounter {section}
\newcounter {subsection}[section]
\newcounter {subsubsection}[subsection]
\newcounter {paragraph}[subsubsection]
\newcounter {subparagraph}[paragraph]
\renewcommand \thepart {\@Roman\c@part}
\renewcommand \thesection {\@arabic\c@section}
\renewcommand\thesubsection   {\thesection.\@arabic\c@subsection}
\renewcommand\thesubsubsection{\thesubsection .\@arabic\c@subsubsection}
\renewcommand\theparagraph    {\thesubsubsection.\@arabic\c@paragraph}
\renewcommand\thesubparagraph {\theparagraph.\@arabic\c@subparagraph}
\newcommand\part{%
  \if@noskipsec \leavevmode \fi
  \par
  \addvspace{4ex}%
  \@afterindentfalse
  \secdef\@part\@spart}

\def\@part[#1]#2{%
   \ifnum \c@secnumdepth >\m@ne
     \refstepcounter{part}%
     \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
   \else
     \addcontentsline{toc}{part}{#1}%
   \fi
   {\parindent \z@ \raggedright
    \interlinepenalty \@M
    \normalfont
    \ifnum \c@secnumdepth >\m@ne
      \Large\bfseries \partname\nobreakspace\thepart
      \par\nobreak
    \fi
    \huge \bfseries #2%
    \markboth{}{}\par}%
   \nobreak
   \vskip 3ex
   \@afterheading}
\def\@spart#1{%
   {\parindent \z@ \raggedright
    \interlinepenalty \@M
    \normalfont
    \huge \bfseries #1\par}%
    \nobreak
    \vskip 3ex
    \@afterheading}
\newcommand\section{\@startsection {section}{1}{\z@}%
                                  {-3.5ex \@plus -1ex \@minus -.2ex}%
                                  {2.3ex \@plus.2ex}%
                                  {\normalfont\Large\bfseries}}
\newcommand\subsection{\@startsection{subsection}{2}{\z@}%
                                    {-3.25ex\@plus -1ex \@minus -.2ex}%
                                    {1.5ex \@plus .2ex}%
                                    {\normalfont\large\bfseries}}
\newcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
                                    {-3.25ex\@plus -1ex \@minus -.2ex}%
                                    {1.5ex \@plus .2ex}%
                                    {\normalfont\normalsize\bfseries}}
\newcommand\paragraph{\@startsection{paragraph}{4}{\z@}%
                                   {3.25ex \@plus1ex \@minus.2ex}%
                                   {-1em}%
                                   {\normalfont\normalsize\bfseries}}
\newcommand\subparagraph{\@startsection{subparagraph}{5}{\parindent}%
                                      {3.25ex \@plus1ex \@minus .2ex}%
                                      {-1em}%
                                     {\normalfont\normalsize\bfseries}}
\if@twocolumn
 \setlength\leftmargini  {2em}
\else
 \setlength\leftmargini  {2.5em}
\fi
\leftmargin  \leftmargini
\setlength\leftmarginii  {2.2em}
\setlength\leftmarginiii {1.87em}
\setlength\leftmarginiv  {1.7em}
\if@twocolumn
 \setlength\leftmarginv  {.5em}
 \setlength\leftmarginvi {.5em}
\else
 \setlength\leftmarginv  {1em}
 \setlength\leftmarginvi {1em}
\fi
\setlength  \labelsep  {.5em}
\setlength  \labelwidth{\leftmargini}
\addtolength\labelwidth{-\labelsep}
\@beginparpenalty -\@lowpenalty
\@endparpenalty   -\@lowpenalty
\@itempenalty     -\@lowpenalty
\renewcommand\theenumi{\@arabic\c@enumi}
\renewcommand\theenumii{\@alph\c@enumii}
\renewcommand\theenumiii{\@roman\c@enumiii}
\renewcommand\theenumiv{\@Alph\c@enumiv}
\newcommand\labelenumi{\theenumi.}
\newcommand\labelenumii{(\theenumii)}
\newcommand\labelenumiii{\theenumiii.}
\newcommand\labelenumiv{\theenumiv.}
\renewcommand\p@enumii{\theenumi}
\renewcommand\p@enumiii{\theenumi(\theenumii)}
\renewcommand\p@enumiv{\p@enumiii\theenumiii}
\newcommand\labelitemi{\textbullet}
\newcommand\labelitemii{\normalfont\bfseries \textendash}
\newcommand\labelitemiii{\textasteriskcentered}
\newcommand\labelitemiv{\textperiodcentered}
\newenvironment{description}
              {\list{}{\labelwidth\z@ \itemindent-\leftmargin
                       \let\makelabel\descriptionlabel}}
              {\endlist}
\newcommand*\descriptionlabel[1]{\hspace\labelsep
                               \normalfont\bfseries #1}
\if@titlepage
 \newenvironment{abstract}{%
     \titlepage
     \null\vfil
     \@beginparpenalty\@lowpenalty
     \begin{center}%
       \bfseries \abstractname
       \@endparpenalty\@M
     \end{center}}%
    {\par\vfil\null\endtitlepage}
\else
 \newenvironment{abstract}{%
     \if@twocolumn
       \section*{\abstractname}%
     \else
       \small
       \begin{center}%
         {\bfseries \abstractname\vspace{-.5em}\vspace{\z@}}%
       \end{center}%
       \quotation
     \fi}
     {\if@twocolumn\else\endquotation\fi}
\fi
\newenvironment{verse}
              {\let\\\@centercr
               \list{}{\itemsep      \z@
                       \itemindent   -1.5em%
                       \listparindent\itemindent
                       \rightmargin  \leftmargin
                       \advance\leftmargin 1.5em}%
               \item\relax}
              {\endlist}
\newenvironment{quotation}
              {\list{}{\listparindent 1.5em%
                       \itemindent    \listparindent
                       \rightmargin   \leftmargin
                       \parsep        \z@ \@plus\p@}%
               \item\relax}
              {\endlist}
\newenvironment{quote}
              {\list{}{\rightmargin\leftmargin}%
               \item\relax}
              {\endlist}
\if@compatibility
\newenvironment{titlepage}
   {%
     \if@twocolumn
       \@restonecoltrue\onecolumn
     \else
       \@restonecolfalse\newpage
     \fi
     \thispagestyle{empty}%
     \setcounter{page}\z@
   }%
   {\if@restonecol\twocolumn \else \newpage \fi
   }
\else
\newenvironment{titlepage}
   {%
     \if@twocolumn
       \@restonecoltrue\onecolumn
     \else
       \@restonecolfalse\newpage
     \fi
     \thispagestyle{empty}%
     \setcounter{page}\@ne
   }%
   {\if@restonecol\twocolumn \else \newpage \fi
    \if@twoside\else
       \setcounter{page}\@ne
    \fi
   }
\fi
\newcommand\appendix{\par
 \setcounter{section}{0}%
 \setcounter{subsection}{0}%
 \gdef\thesection{\@Alph\c@section}}
\setlength\arraycolsep{5\p@}
\setlength\tabcolsep{6\p@}
\setlength\arrayrulewidth{.4\p@}
\setlength\doublerulesep{2\p@}
\setlength\tabbingsep{\labelsep}
\skip\@mpfootins = \skip\footins
\setlength\fboxsep{3\p@}
\setlength\fboxrule{.4\p@}
\renewcommand \theequation {\@arabic\c@equation}
\newcounter{figure}
\renewcommand \thefigure {\@arabic\c@figure}
\def\fps@figure{tbp}
\def\ftype@figure{1}
\def\ext@figure{lof}
\def\fnum@figure{\figurename\nobreakspace\thefigure}
\newenvironment{figure}
              {\@float{figure}}
              {\end@float}
\newenvironment{figure*}
              {\@dblfloat{figure}}
              {\end@dblfloat}
\newcounter{table}
\renewcommand\thetable{\@arabic\c@table}
\def\fps@table{tbp}
\def\ftype@table{2}
\def\ext@table{lot}
\def\fnum@table{\tablename\nobreakspace\thetable}
\newenvironment{table}
              {\@float{table}}
              {\end@float}
\newenvironment{table*}
              {\@dblfloat{table}}
              {\end@dblfloat}
\newlength\abovecaptionskip
\newlength\belowcaptionskip
\setlength\abovecaptionskip{10\p@}
\setlength\belowcaptionskip{0\p@}
\long\def\@makecaption#1#2{%
 \vskip\abovecaptionskip
 \sbox\@tempboxa{#1: #2}%
 \ifdim \wd\@tempboxa >\hsize
   #1: #2\par
 \else
   \global \@minipagefalse
   \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
 \fi
 \vskip\belowcaptionskip}
\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
\DeclareRobustCommand*\cal{\@fontswitch\relax\mathcal}
\DeclareRobustCommand*\mit{\@fontswitch\relax\mathnormal}
\newcommand\@pnumwidth{1.55em}
\newcommand\@tocrmarg{2.55em}
\newcommand\@dotsep{4.5}
\setcounter{tocdepth}{3}
\newcommand\tableofcontents{%
   \section*{\contentsname
       \@mkboth{%
          \MakeUppercase\contentsname}{\MakeUppercase\contentsname}}%
   \@starttoc{toc}%
   }
\newcommand*\l@part[2]{%
 \ifnum \c@tocdepth >-2\relax
   \addpenalty\@secpenalty
   \addvspace{2.25em \@plus\p@}%
   \setlength\@tempdima{3em}%
   \begingroup
     \parindent \z@ \rightskip \@pnumwidth
     \parfillskip -\@pnumwidth
     {\leavevmode
      \large \bfseries #1\hfil \hb@xt@\@pnumwidth{\hss #2}}\par
      \nobreak
      \if@compatibility
        \global\@nobreaktrue
        \everypar{\global\@nobreakfalse\everypar{}}%
     \fi
   \endgroup
 \fi}
\newcommand*\l@section[2]{%
 \ifnum \c@tocdepth >\z@
   \addpenalty\@secpenalty
   \addvspace{1.0em \@plus\p@}%
   \setlength\@tempdima{1.5em}%
   \begingroup
     \parindent \z@ \rightskip \@pnumwidth
     \parfillskip -\@pnumwidth
     \leavevmode \bfseries
     \advance\leftskip\@tempdima
     \hskip -\leftskip
     #1\nobreak\hfil \nobreak\hb@xt@\@pnumwidth{\hss #2}\par
   \endgroup
 \fi}
\newcommand*\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\newcommand*\l@subsubsection{\@dottedtocline{3}{3.8em}{3.2em}}
\newcommand*\l@paragraph{\@dottedtocline{4}{7.0em}{4.1em}}
\newcommand*\l@subparagraph{\@dottedtocline{5}{10em}{5em}}
\newcommand\listoffigures{%
   \section*{\listfigurename}%
     \@mkboth{\MakeUppercase\listfigurename}%
             {\MakeUppercase\listfigurename}%
   \@starttoc{lof}%
   }
\newcommand*\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\newcommand\listoftables{%
   \section*{\listtablename}%
     \@mkboth{%
         \MakeUppercase\listtablename}%
        {\MakeUppercase\listtablename}%
   \@starttoc{lot}%
   }
\let\l@table\l@figure
\newdimen\bibindent
\setlength\bibindent{1.5em}
\newenvironment{thebibliography}[1]
    {\section*{\refname}%
     \@mkboth{\MakeUppercase\refname}{\MakeUppercase\refname}%
     \list{\@biblabel{\@arabic\c@enumiv}}%
          {\settowidth\labelwidth{\@biblabel{#1}}%
           \leftmargin\labelwidth
           \advance\leftmargin\labelsep
           \@openbib@code
           \usecounter{enumiv}%
           \let\p@enumiv\@empty
           \renewcommand\theenumiv{\@arabic\c@enumiv}}%
     \sloppy
     \clubpenalty4000
     \@clubpenalty \clubpenalty
     \widowpenalty4000%
     \sfcode`\.\@m}
    {\def\@noitemerr
      {\@latex@warning{Empty `thebibliography' environment}}%
     \endlist}
\newcommand\newblock{\hskip .11em\@plus.33em\@minus.07em}
\let\@openbib@code\@empty
\newenvironment{theindex}
              {\if@twocolumn
                 \@restonecolfalse
               \else
                 \@restonecoltrue
               \fi
               \twocolumn[\section*{\indexname}]%
               \@mkboth{\MakeUppercase\indexname}%
                       {\MakeUppercase\indexname}%
               \thispagestyle{plain}\parindent\z@
               \parskip\z@ \@plus .3\p@\relax
               \columnseprule \z@
               \columnsep 35\p@
               \let\item\@idxitem}
              {\if@restonecol\onecolumn\else\clearpage\fi}
\newcommand\@idxitem{\par\hangindent 40\p@}
\newcommand\subitem{\@idxitem \hspace*{20\p@}}
\newcommand\subsubitem{\@idxitem \hspace*{30\p@}}
\newcommand\indexspace{\par \vskip 10\p@ \@plus5\p@ \@minus3\p@\relax}
\renewcommand\footnoterule{%
 \kern-3\p@
 \hrule\@width.4\columnwidth
 \kern2.6\p@}
\newcommand\@makefntext[1]{%
   \parindent 1em%
   \noindent
   \hb@[email protected]{\hss\@makefnmark}#1}
\newcommand\contentsname{Contents}
\newcommand\listfigurename{List of Figures}
\newcommand\listtablename{List of Tables}
\newcommand\refname{References}
\newcommand\indexname{Index}
\newcommand\figurename{Figure}
\newcommand\tablename{Table}
\newcommand\partname{Part}
\newcommand\appendixname{Appendix}
\newcommand\abstractname{Abstract}
\def\today{\ifcase\month\or
 January\or February\or March\or April\or May\or June\or
 July\or August\or September\or October\or November\or December\fi
 \space\number\day, \number\year}
\setlength\columnsep{10\p@}
\setlength\columnseprule{0\p@}
\pagestyle{plain}
\pagenumbering{arabic}
\if@twoside
\else
 \raggedbottom
\fi
\if@twocolumn
 \twocolumn
 \sloppy
 \flushbottom
\else
 \onecolumn
\fi
\endinput
%%
%% End of file `article.cls'.