STRAINTS</TT>
indicator  card
and section followed by a  <TT>VARIABLES/COLUMNS</TT>
card and section.  The
allowed  data  cards  are   discussed   in    Section&nbsp;<A HREF="node20.html#S2.2.6">3.2.6</A> and
Section&nbsp;<A HREF="node21.html#S2.2.7">3.2.7</A>.   If   a group/row-wise  input scheme  is  to be
adopted, the  data   file   will  contain a  <TT>VARIABLES/COLUMNS</TT>
indicator   card
and section followed by a <TT>GROUPS/ROWS/CONSTRAINTS</TT>
card  and section.  The data  cards
for  this  scheme