import java.net.*;
public class NsLookup{
public static void main(String []args){
if(args.length == 0){
System.out.println("Pemakaian: java NsLookup <hostname>");
System.exit(0);
}
String host = args[0];
InetAddress address = null;
try{
address = InetAddress.getByName(host);
}catch(UnknownHostException e){
System.out.println("Unknown host");
System.exit(0);
}
byte[] ip = address.getAddress();
for(int i=0; i<ip.length; i++){
    if(i>0) System.out.print(".");
    System.out.print((ip[i])& 0xff);
}
System.out.println();
}
}