import java.util.*;
          import java.net.*;
          import java.io.*;

          class s02  {
              public static void main(String[] args) {
                  try {
                      URL yahoo = new URL("http://www.yahoo.com/");
                      DataInputStream dis = new DataInputStream(yahoo.openStream());
                      String inputLine;
			String sisu="";

                      while ((inputLine = dis.readLine()) != null) {
                          System.out.println(inputLine);
			sisu+=inputLine;
                      }
                      dis.close();
			  
       boolean nextIsTag = false ;
       for ( StringTokenizer tags = new StringTokenizer(sisu, "<>", true );
             tags.hasMoreTokens(); ) {
         String tag = tags.nextToken();
         if ( tag.equals( "<" ) )    {
           nextIsTag = true ;
           continue ;
         }
         if ( nextIsTag ) {
           for ( StringTokenizer params = new StringTokenizer( tag, "\t\n\r\"= " );
                 params.hasMoreTokens(); ) {
             String param = params.nextToken().toLowerCase();
             if ( param.equals( "href" ) && params.hasMoreTokens() )
		{System.out.println(params.nextToken());}
         }
         nextIsTag = false ;
       }}
                  } catch (MalformedURLException me) {
                      System.out.println("MalformedURLException: " + me);
                  } catch (IOException ioe) {
                      System.out.println("IOException: " + ioe);
                  }
              }
          }