$output_str = "@subject[$j];@failed[$j];@monthi[$j]/@dayi[$j]/@yeari[$j];@routerval[$j];" .
          "@tag[$j];@montho[$j]/@dayo[$j]/@yearo[$j];@lotCode[$j];@commentso[$j]\n";
# or, if you've gone to scalars
$output_str = "$subject;$failed;$monthi/$dayi/$yeari;$routerval;" .
          "$tag;$montho/$dayo$/$yearo;$lotCode;$commentso\n";
    
print OUTPUT $output_str;
  print $output_str;