import java.net.*;

public class Lookup {
    public static void main(String args[]) {
	try {
	    InetAddress ads[] = InetAddress.getAllByName(args[0]);
	    System.out.println("IP Address for " + args[0] + ":");
	    for (int i=0;i<ads.length;i++) {
		System.out.println(ads[i]);
	    }
	} catch (UnknownHostException e) {
	    System.out.println("I don't know who I am!");
	} catch (ArrayIndexOutOfBoundsException e) {
	    System.out.println("Usage: Lookup hostname");
	}
    }
}