Thank you very very much^^ now my script looks nice^^ Here is source:

#!/usr/bin/perl 
use warnings;
use strict;
use Net::POP3;

my $time = scalar localtime;
my $pop3 = "pop3.poczta.onet.pl";
my $login = "haptor\@op.pl";
my $pass = "******************";

my $pop = Net::POP3->new($pop3);
my $res = $pop->login($login, $pass);

if ($res){
print"On $time e-mail status inbox: $res post \n";
} else {
print "Couldn't connect $!\n";
exit;
}

my $msg; my $msgnum;

do{
print "Write id(number) email to read subject:\n";
chomp($msgnum = <STDIN>);
} while($msgnum > $res);

$msg = $pop->get($msgnum);

for my $line ( @$msg ) {
if( $line =~ /^Subject:(.*)/ ) {
 print "Subject is $1\n";
 last
} }

print "Read e-mail? [y/n]\n";
chomp(my $ans = <STDIN>);
if ($ans =~ /y/i){
 while( my $line = shift @$msg ) {
   last while $line =~ /^Status:/;
}

my $nline = 0;

for( @$msg )
{
$nline += 1;
    print "$nline> $_";
} } elsif ($ans =~ /n/i){
exit;
} else {
print "Bad!";
exit;
}

$pop->quit();
[download]

If somebody use this scripts i'll be very happy^^ i love Perl;p