import java.awt.*;
import java.applet.*;

public class Apartments extends Applet {

     public void paint(Graphics g) {
        int y = 20;
        for (int floor = 0; floor < 4; floor++) {
            int x = 0;
            for (int apartment = 0; apartment < 5; apartment++) {
                g.drawString ("A", x, y);
                x = x + 20;
            }
        y = y + 20;
        }
    }
}