import java.net.*;
import java.io.*;

// send 1 line from stdin to server, read one line reply
// try java cli localhost 7 -> echo; 13 -> daytime

public class cli {

static String host = "localhost";
static String port = "5194";

public static void main(String[] argv) {
    if (argv.length > 0)
        host = argv[0];
    if (argv.length > 1)
        port = argv[1];
    cli(host, port);
}

public static void cli(String host, String port) // tcp/ip version
{
    try {
        DataInputStream stdin = new DataInputStream(System.in);
        Socket client = new Socket(host, Integer.parseInt(port));
System.err.println("cli " + client);
        DataInputStream sin = 
            new DataInputStream(client.getInputStream());
        DataOutputStream sout = 
            new DataOutputStream(client.getOutputStream());

        String s;
        while ((s = stdin.readLine()) != null) { // read cmd
            sout.writeBytes(s);  // write to socket
            sout.writeByte('\n');
            String r = sin.readLine(); // read reply
            System.out.println(host + " reply " + r);
            if (s.equals("exit"))
                break;
        }
        client.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}