Yikes! "Not on the right track at all" gets my vote. Try to at least have the code compile before posting here. Some hints:

• It's "my", not $my
• Perl statements should end with semicolons
• A consistent indenting scheme is a Good Thing - 4 spaces in at the start of a new loop is a popular one

Arbitrary rows are fairly easy, it's arbitrary columns that are tricky. Just go through your array and add the rows as you go.