import java.net.*;
import java.io.*;
public class Masinavaataja{
  public static String tolgiRida(String rida) throws Exception{
    int tyhikukoht=rida.indexOf(" ");
    String algus=rida.substring(0, tyhikukoht);
    String ots=rida.substring(tyhikukoht);
    String nimi=InetAddress.getByName(algus)+"";
    return nimi+" "+ots;
  }
  public static void main(String argumendid[]) throws Exception{
    String fs1="sisseaadressid.txt";
    String fs2="valjaaadressid.txt";
    if(argumendid.length>0)fs1=argumendid[0];
    if(argumendid.length>1)fs2=argumendid[1];
    DataInputStream sisse=new DataInputStream(new FileInputStream(fs1));
    DataOutputStream valja=new DataOutputStream(new FileOutputStream(fs2));
    String rida=sisse.readLine();
    int nr=0;
    while(rida!=null){
    nr++;
      try{
         String tulemus=tolgiRida(rida);
         valja.writeBytes(tulemus+"\n");
         if(nr%1000==0){
         System.out.println(nr+" "+tulemus);
         }
      }catch(Exception e){
        System.out.println("!!! "+rida+e);
      }
      rida=sisse.readLine();
    }
    valja.close();
  }
}