Hello all,

I am stumpt on where to start with this.
I have a huge list of numbers that correlate to group names.
Please read the comments in the code.
Thanks in advanced! for any help you have to offer.

#!/usr/local/bin/perl -w

use strict;

my %numbers = ( '210' => 'rg1000',
                '212' => 'rg1000',
                '214' => 'rg1000',
                '215' => 'rg1000',
                '218' => 'rg1003',
                '221' => 'rg1000',
                '222' => 'rg1003',
                '223' => 'rg1003',
                '224' => 'rg1003' );

# if the first 2 digit match and point to the same rg then print only 
+the first two digits with the rg
foreach my $item (keys %numbers) {
        print "$item\n";
}

#desired output
# 21 => rg1000
# 218 => rg1003
# 22 => rg1003
# 221 => rg1000

[download]
UPDATE:
In looking back, it looks like ikegami (thanks!) has it correct. Thanks to all that replied.

In reply to summarization of list by gman

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.