import java.net.*;

public class GetIP {
  public static void main(String argv[]) throws UnknownHostException {
    InetAddress internetHost = null;
    internetHost = InetAddress.getLocalHost();
    /*
	The array ipBytes containes 4 bytes 
	representing parts of a valid IP address.
    */
    byte ipBytes[] = internetHost.getAddress();
    for (int i=0; i<ipBytes.length; i++) {
      if (i > 0) {
        System.out.print(".");
      }
      System.out.print(ipBytes[i] & 0xff);
    }
    System.out.println();
  }
}