import java.io.PrintStream;
import java.util.Scanner;
import java.net.URL;
import java.io.IOException;
import javax.swing.JOptionPane;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;

public class Prices
{
   public static void main(String[] arguments) throws IOException
   {
      Scanner input = new Scanner(System.in);
      PrintStream output = System.out;
      
      URL url = new URL("http://store.apple.com/us/browse/home/shop_ipod/ipod_accessories/speakers?mco=MTM3NDk3OTE&s=priceHL");
      Scanner webInput = new Scanner(url.openStream());
      
      final String ITEM = "<dt class=\"name\" title=\".*\">";
      final String PRICE = ".*>\\$\\d{1,4}\\.\\d{2}<.*";
      
      // Offsets used to isolate specific parts of the item and price strings
      // These are highly dependent on the structure of the html document
      final int ITEM_OFFSET = 7;
      final int PRICE_OFFSET = 2;
      
      Map<String, String> prices = new TreeMap<String, String>();
      String thisItem = null;
      while (webInput.hasNextLine())
      {
         String line = webInput.nextLine().trim();
         if (line.matches(ITEM))
         {
         	int start = line.indexOf("title") + ITEM_OFFSET;
         	int end = line.indexOf("\"", start);
         	thisItem = line.substring(start, end);
         }
         else if (line.matches(PRICE) && thisItem != null)
         {
         	int start = line.indexOf('>') + PRICE_OFFSET;
         	int end = line.indexOf('<', start);
            String thisPrice = line.substring(start, end);
            prices.put(thisItem, thisPrice);
            thisItem = null;
         }
      }
      for (String item : prices.keySet())
      {
      	output.printf("$%s %s%n", prices.get(item), item);
      }
      
      double THRESHOLD = 300;

      Iterator<String> iter = prices.values().iterator();
      while (iter.hasNext())
      {
         double price = Double.parseDouble(iter.next());
         if (price < THRESHOLD)
         {
            iter.remove();
         }
      }
      output.println("---");
      for (String item : prices.keySet())
      {
         output.printf("$%s %s%n", prices.get(item), item);
      }
   }
}