\batchmode \hsize=17cm \hoffset=-0.54cm \voffset=-0.54cm \vsize=9.9in \footline={} \def\rhead{ý. äÅÉÊÑÒÐÀ. {\sl "äÈÑÖÈÏËÈÍÀ ÏÐÎÃÐÀÌÌÈÐÎÂÀÍÈß"}} \def\leftheadline{ \hbox to \hsize{\vbox to 10 pt {}% \llap{\tenbf\folio\kern 1pc}\tenit\rhead\hfil } } \def\rightheadline{ \hbox to \hsize{\vbox to 10 pt {}% \tenit\hfil\rhead\rlap{\kern 1pc\tenbf\folio} } } \def\makeheadline{ \vbox to 0pt{\vskip-22.5pt\ifodd\pageno\rightheadline\else\leftheadline\fi\vss} \nointerlineskip } \def\emph#1{{\it #1\/}} \newcount\chapno \chapno=0 \newcount\subchno \newcount\subsubchno \newcount\footno \def\chapter#1{\penalty-250 \advance\chapno by 1 \subchno=0 \footno=1 \bigskip\noindent \centerline{\bf#1}\nobreak\medskip } \def\subchap#1{\medskip \advance\subchno by 1 \subsubchno=0 \centerline{{\bf\the\chapno.\the\subchno.~#1}}\smallskip } \def\subsubchap#1{\medskip \advance\subsubchno by 1 \centerline{{\bf\the\chapno.\the\subchno.\the\subsubchno.~#1}}\smallskip } \def\boxit#1{\vbox{\hrule\hbox{\vrule\kern 0pt \vbox{\kern 0pt #1 \kern 0pt}\kern 0pt\vrule}\hrule}} \def\bskip{\hskip 0.5em plus 1fil} \widowpenalty=10000 \clubpenalty=10000 \def\frac#1/#2{\leavevmode\kern.1em \raise.5ex\hbox{\the\scriptfont0 #1}\kern-.1em /\kern-.15em\lower.25ex\hbox{\the\scriptfont0 #2}} \def\N{\char252\relax} \def\sign{\mathop{\rm sign}\nolimits} \def\kwd#1{\relax\ifmmode\hbox{\bf{}#1}\else{\bf{}#1}\fi} \def\intro#1\par{{\narrower#1\par\medskip}} \def\dfn#1{{\it#1}} \def\pict#1{$$Picture\ #1$$} \def\<#1>{\relax% \ifmmode\langle\else$\langle$\fi% {\hbox{\rm #1}}% \ifmmode\rangle\else$\rangle$\fi% } \def\note#1{\footnote{$^\the\footno$}{#1}\global\advance\footno by 1} \def\^{\char"0B\relax} \def\{{\char"7B\relax} \def\}{\char"7D\relax} \def\true{{\it true}} \def\GE{\ifmmode\ge\else$\ge$\fi} \def\LE{\ifmmode\le\else$\le$\fi} \def\NE{\ifmmode\not=\else$\not=$\fi} \def\TO{\ifmmode\to\else$\to$\fi} \def\var#1{{\it#1}} \def\tnot{$\lnot$} \def\and{\mathbin{\bf and}} \def\or{\mathbin{\bf or}} \def\non{\mathop{\bf non}\nolimits} \def\íîä{\mathop{\rm íîä}\nolimits} \def\íîê{\mathop{\rm íîê}\nolimits} \def\wp{\mathop{\rm wp}\nolimits} \def\wlp{\mathop{\rm wlp}\nolimits} \def\cand{\mathbin{\bf cand}} \def\wbox{\hbox{[]}} \def\wdec{\mathop{\rm wdec}\nolimits} \def\abs{\mathop{\rm abs}\nolimits} {\obeyspaces\gdef {\ }} \def\prg{\bgroup\obeyspaces\tt\let\par=\cr\obeylines% \vbox\bgroup\halign\bgroup##\hfill\cr% } \def\grp{\egroup\egroup\egroup} \def\.#1{\kwd{#1}}