$left_column='<b>left column</b> left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column left column';
$right_column='<b>right column</b> right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column right column';