\input noprefnt % re-defines primitive \font, \font\preloaded is ignored
\input plain    % format Plain
\restorefont    % original meaning of primitive \font
\font\tenrm=ecrm1000 \tenrm
\font\tenbf=ecbx1000
\font\tenit=ecti1000
\font\tentt=ectt1000
\font\tensl=ecsl1000
\input utf8-t1  % input: UTF-8, internal TeX: Cork
\input hyphen.lan  % czech / slovak hyphenation pattern (may be others too)
\input plaina4  % \hsize and \vsize for A4
\everyjob=\expandafter{\the\everyjob
   \message{The format: plain-utf8-ec <Jan. 2003>.}
   \message{The cs-fonts are preloaded and A4 size predefined.}}
\dump