import java.awt.*;
import java.net.*;
import java.io.*;
import java.awt.event.*;
import javax.swing.*;

public class Application1
{
     public Application1()
     {
     char race, gender;
     int age, weight;
     int fat_men = 0;
     int people = 0;
     try
      {
        FileInputStream filein = new FileInputStream("data1.txt");
        DataInputStream in = new DataInputStream(filein);
          do
            {
               race = in.readChar();
               gender = in.readChar();
               age = in.readInt();
               weight = in.readInt();
               people ++;
               if (gender == 'M')
                      {
                          if (weight > 600)
                          fat_men = fat_men + 1;
                       } 
           }
            while ( people < 10);

           JOptionPane.showMessageDialog(null,"number of fat men     
                       "+fat_men,"file output",JOptionPane.NO_OPTION);
           filein.close();
      }
      catch (IOException e)
       {
       }
  }
   public static void main(String[] args)
     {
       Application1 app = new Application1();
       System.exit(0);
     }
}