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

public class test {
  public static void main(String[] arg) {
    ServerSocket sock;
    Socket ss;
    InputStream is;
    OutputStream os;
    int c;
    try {
      sock = new ServerSocket(0);
      ss = sock.accept();
      is = ss.getInputStream();
      while(true) {
        c = is.read();
        if(c>0)
          System.out.println(c);
        if(c=='Q')
          break;
      }
    } catch (Exception e) {
    }
  }
}