Show us some data.

Show us your code

Show some effort!

Show yourself On asking for help, How do I post a question effectively? and I know what I mean. Why don't you?.

Update: Title was "script perl for VARNA";
Original content removed from OP; it was this:

hi Perlmonks!!!
I have some RNA sequences and I would like to Know how can i creat a perl script that filter that sequences and give me the corresponding strings containing a set of nested parenteshis. I am talking about VARNA: Visualitzation applet for RNA.
Thanks!!!!