% This file is public domain.
%
\ifx\undefined\eplain \input eplain \fi
Here is a single-column line of text.
%\vskip 6in
%And another one.
\doublecolumns
\newcount \xxx
\xxx=0
\par
\baselineskip = 2.5\baselineskip
\loop
\hbox{Line \the\xxx.}
\ifnum \xxx < 3
\advance \xxx by 1
\repeat
\singlecolumn
Another single-column line of text.
\bye