Hello, once again seeking for your help. I have a file 'param' with '$count $word' on each line and a file 'sent' with some text, each word on each line 
------param-------
200 dog 
300 cat 
100 rat 
400 hen 
-----sent--------
The
cat
catches
the
hen
...

[download]
I need to tag each word in the 'sent' file with the corresponding count value from the 'param' file: 
The
cat 300
catches
the
hen 400
...

[download]
And my code is: 
#!/usr/bin/perl

use strict;
use utf8;
use warnings;

open PARAM, "param" or die $!;
open DEV, "sent" or die $!;
my %counts;

my @dev;
 while(<DEV>){
 chomp;
 @dev = <DEV>;
}

while(<PARAM>) {
  chomp;
  my($count, $word) = split / /;
     $counts{$word} = $count;
}

foreach my$word_dev(@dev){
         if(exists $counts{$word_dev}){
         print "$word_dev $counts{$word_dev}\n";
        }
}

[download]
I believe there is some silly mistake over there, but I can't find it. I will very appreciate your help:)

In reply to hash keys from another file by Ninke

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.