folder
    |--folder2
    |--folder3
    |   |--folderX
    |   |--folderY
    |-folder4

##</code><code>##

Folder 4464 - foldername_1.
   count subfolders 0.
Folder 4465 - foldername_2.
   count subfolders 0.
Folder 4466 - foldername_3.
   count subfolders 4.
...

##</code><code>##

Folder 1298 - foldername_ten.
   subfolder 1299.
   subfolder 1300.
Folder 1299 - foldername_eleven.
    No sub folders.
Folder 1300 - foldername_twelve.
    No sub folders.
Folder 1311 - foldername_thirteen.
   subfolder 1317.
   subfolder 1318.
   subfolder 1958.

##</code><code>##

    # %folders has each folder ID as a key and the name as the value
    # @subfolders is the Folder/Folder data as shown above, line-for-line

    foreach my $k (sort (keys (%folders))) {
        $folderpaths{$k} = &build_path($k,@subfolders);
        print "$k => $folderpaths{$k}\n";
    }

sub build_path($@) {
    my $folderid = shift @_;
    my @dumpff = @_;
    my $path = "$folderid";
    my $parentid = "";
    foreach my $line (@dumpff) {
        if ($line =~ /^Folder (\d{3,5})\s+\-\s+.*\./) {
            $parentid = $1;
        }
        elsif ($line =~ /\s+subfolder\s+$folderid\s+\-\s+.*\./) {
            $path = join('/', &build_path($parentid,@subfolders),$folderid);
        }
    }
    return $path;
}