use IO::Socket;
my $sock = new IO::Socket::INET (
	LocalHost => 'localhost',
	LocalPort => '7070',
	Proto=>'tcp',
	Listen=>1,
	Reuse=>1,
);
my $new_sock = $sock->accept();
$i=0;
while(1){
print $new_sock "HIII CALLER!\n";
print $new_sock "stop reading ,caller!\n";
while(<$new_sock>){
	print $_;
	if($_ == "stop reading ,receiver!\n"){
		last;
	};
}
}
close($sock);

##</code><code>##

use IO::Socket;
$sock =0;
while(!$sock){
	$sock = new IO::Socket::INET (
	PeerAddr => 'localhost',
	PeerPort => '7070',
	Proto => 'tcp',
);
}
die "Could not create socket: $!\n" unless $sock;

while(1){
print $sock "HIIII RECEIVER!\n";
print $sock "stop reading ,receiver!\n";
while(<$sock>){
	print $_;
	if($_ == "stop reading ,caller!\n"){
		last;
	};
}
};
close($sock);