// http://www.loirak.com/prog/java.php
import java.awt.*;
import java.awt.image.*;
import java.io.*;
class Main {
    static final int X = 900, Y = 750;
    static BufferedImage I = new BufferedImage(X, Y, BufferedImage.TYPE_INT_RGB);
    static int[][] mesh; static int J, K;
    static int gi() throws IOException{int k = System.in.read();
      return k+(((int)System.in.read())<<8);}

    static class MainCanvas extends Canvas {
      static Graphics g;
      static int m = (1<<16)-1;
      private void dl(int f, int t){g.drawLine((f>>16)&m, f&m, (t>>16)&m, t&m);}
      public void paint(Graphics gx){g = gx;
//       g.drawImage(I, 0, 0, Color.red, null); // maybe to erase old?
       if(1<0) for(int k=63; k<240; k+= 5) g.drawLine(20, 20, 80, k);
       else {for(int j=0; j<J-1; ++j) {for(int k=0; k<K-1; ++k) {
         dl(mesh[j][k], mesh[j+1][k]); dl(mesh[j][k], mesh[j][k+1]);
         dl(mesh[j][k+1], mesh[j+1][k]);}
         dl(mesh[j][K-1], mesh[j+1][K-1]);}
         for(int k=0; k<K-1; ++k) dl(mesh[J-1][k], mesh[J-1][k+1]);}}}

    static public void main(String[] args) throws IOException{
        J = gi(); K = gi();
        mesh = new int[J][K];
        Frame f = new Frame("paint Example");
        Canvas can = new MainCanvas();
        f.add(can, "Center");
        f.setSize(new Dimension(X,Y+22));
        WritableRaster wr = I.getRaster();
        int[] a = new int[3];
        f.setVisible(true);
        {for(int j=0; j<J; ++j) for(int k=0; k<K; ++k)
          {int r=gi(); mesh[j][k] = (r<<16) + gi();}}
        {a[2] = 255; a[1] = 255; a[0] = 255;
           for(int j = 0; j<Y-20; ++j) {
           for(int i = 0; i<X-20; ++i) {
              wr.setPixel(10+i, 10+j, a);}}
        can.repaint();}}}