import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class FishAWT extends Frame implements Runnable {

  public static void main(String[] argv) {
    new Thread(new FishAWT("Fish World")).start();
  }

  public void run () {
    DataInputStream dis = new DataInputStream(System.in);
    int numFish = 0;
    boolean errorFound = false;
    try {
      numFish = dis.readInt();
    } catch (IOException e) { errorFound = true; }
    canvas.setFishNum(numFish);
    
    double xpos = 0;
    double ypos = 0;
    while (true) {
      for (int i = 0; i < numFish; i++) {
        try {
          xpos = dis.readDouble();
          ypos = dis.readDouble();
        } catch (IOException e) { errorFound = true; break; }
        canvas.xpositions[i] = xpos*100;
        canvas.ypositions[i] = ypos*100;
      }
      if (errorFound) break;
      paintComponents(canvas.getGraphics());
      //      show();
    }
  }

  public FishAWT(String title) {
    super(title);
    setLocation(30,30);
    canvas = new FishCanvas();
    setSize(canvas.canvasSize,canvas.canvasSize);

    add(canvas);

    show();
  }

  private FishCanvas canvas;
}