\magnification=1200

\hsize=13cm
\vsize=21.5cm\voffset-7mm
\parskip=3pt plus 1.5pt minus 1.5pt

\let\oldstyle=\rm
\font\bffourteen=cmbx10 at 14.4pt
\font\bftwelve=cmbx10 at 12pt
\font\eighttt=cmtt8
\font\tenBbb=msbm10
\font\fiveBbb=msbm5
\font\sevenBbb=msbm7
\newfam\Bbbfam
\textfont\Bbbfam=\tenBbb\scriptfont\Bbbfam=\sevenBbb
\scriptscriptfont\Bbbfam=\fiveBbb
\def\Bbb{\fam\Bbbfam\tenBbb}

\font\tenCal=eusm10
\font\sevenCal=eusm7
\font\fiveCal=eusm5
\newfam\Calfam
  \textfont\Calfam=\tenCal
  \scriptfont\Calfam=\sevenCal
  \scriptscriptfont\Calfam=\fiveCal
\def\Cal{\fam\Calfam\tenCal}

\def\bC{{\Bbb C}}
\def\bN{{\Bbb N}}
\def\bP{{\Bbb P}}
\def\bQ{{\Bbb Q}}
\def\bR{{\Bbb R}}
\def\bZ{{\Bbb Z}}

\def\cC{{\Cal C}}
\def\cD{{\Cal D}}
\def\cE{{\Cal E}}
\def\cF{{\Cal F}}
\def\cK{{\Cal K}}

\def\bu{$\scriptstyle\bullet$~~}
\def\omini{\hbox{${}^\circ$}}

\def\\{\hfil\break}
\def\pskip{\vskip\parskip}
\def\alinea#1|#2|#3|{\bgroup\parskip=0pt\parindent=0cm\strut #2
\vskip-\baselineskip{\leftskip#1 #3\vskip0pt}\egroup}
\def\alineA#1|#2|#3|#4|{\bgroup\parskip=0pt\parindent=0cm\strut #3
\vskip-\baselineskip{\leftskip#1\rightskip#2 #4\vskip0pt}\egroup}

\let\Input=\input
\def\input #1 {}
