import java.io.*;

public class BuildDict 
{
	private static BufferedReader console = new BufferedReader( new InputStreamReader( System.in ) );

	//private static Dictionary d = new Dictionary(10501);
	private static Dictionary d = new Dictionary(5003);

	public static void processLine(String line)
	{

		String word = "";
		char ch;

		for(int i = 0; i < line.length(); i++)
		{
			// ch is the current character
			ch = line.charAt(i);

			// if ch is a letter, append it to the word
			// being constructed
			if(Character.isLetter(ch))
				word = word + ch;
			// otherwise, if ch is not a letter
			// and there is a word to insert into dictionary
			else if(word.length() > 1)
			{
				word = word.toLowerCase();
				if(d.search(word) == null)
				{
					Record temp = new Record(word);
					d.insert(temp);
				}

				word = "";
			}
			else if(word.length() == 1)
				word = "";
		}
		
		if(word.length() > 1)
		{
			word = word.toLowerCase();
			if(d.search(word) == null)
			{
				Record temp = new Record(word);
				d.insert(temp);
			}
		}

	
	}

	public static void main(String [] args)
	{
                try
                {
			System.out.println("Please type the name of the files you want processed.");
			String filenames = console.readLine();
			String[] fileNameArray = filenames.split("[ \t]+");

			FileOutputStream outFile;
			outFile = new FileOutputStream("words.dat"); 
			PrintStream p = new PrintStream(outFile);

                        String line = "";
			for(int i = 0; i < fileNameArray.length; i++)
			{
                        	FileReader fr = new FileReader(fileNameArray[i]);
                        	BufferedReader stdin = new BufferedReader(fr);

                        	line = stdin.readLine();
				while(line != null)
				{
					processLine(line);
                        		line = stdin.readLine();
				}
			}

			d.print(p);
			d.printStatistics();
			p.close();
                }
                catch(java.io.IOException e)
                {
                        System.out.println(e);
                }

	}

}