use strict;
use warnings;

System::ANodeLogin();
System::ANodeLogin();
System::ANodeLogin();
System::ANodeLogin();
System::ANodeLogout();


package Node;
use strict;
 my ($id, $u, $p, $log, @mess);
 sub New {
    my $class =shift;
    my $this  ={};
    $this->{u} = $id++;
    @mess =();
    $log  =0;
    bless ($this, $class);
    return ($this);
 }

package System;
use strict;
 my (@nodes, $n1, $server, @messages);

 sub ANodeLogin{
    my $self =shift;

    my $node=Node->New;
    push (@nodes, $node);
}

 sub ANodeLogout{
    my $self =shift;
    my $node;

    print "What node would you like to log out of\n";
    foreach $node (@nodes){
       print "--->$node->{u}<---\n";#this is line 62
    }
 }