import java.io.*;

public final class HashTest
{ private static HashSet h = new HashSet();





 public static void main( String [ ] args )  throws IOException
    {  ReadFile r = new ReadFile(args[0]);
       String s = r. readWord();
       while(s!="ENDOFFILE")
        { if(!h.contains(s)) h.add(s);
        
          s = r. readWord();};

       h.statistics();
    }

}