import java.applet.Applet;
import java.awt.*;
import java.awt.Graphics.*;
import java.awt.event.*;

public class maagilruudud extends Applet implements ActionListener{

	TextField[][] ruudud = new TextField[4][4];
   int i;

	public void init(){
		setLayout(new GridLayout(4,4));
				
		for(int m=0; m<4; m++){
			for(int n=0; n<4; n++){
				ruudud[m][n] = new TextField();
				if((m<3)&&(n<3)){
					ruudud[m][n].addActionListener(this);
				}else{
				ruudud[m][n].setEditable(false);}
						
	add(ruudud[m][n]);
				}		
		}
  }
 public void actionPerformed(ActionEvent e){
 	System.out.println(((TextField)e.getSource()).getText());
	int[] rsum = new int[3];
	int[] vsum = new int[3];
	
	
	for(int n=0; n<3; n++){
		vsum[n]=0;
		for(int m=0; m<3; m++){
			vsum[n]+=Integer.parseInt(ruudud[m][n].getText());
		}
		ruudud[3][n].setText(""+vsum[n]);
	}
	for(int m=0; m<3; m++){
	   rsum[m]=0;
	   for(int n=0; n<3; n++){
	      rsum[m]+=Integer.parseInt(ruudud[m][n].getText());
	   }
	   ruudud[m][3].setText(""+rsum[m]);
	}
	
   for(int m=0; m<3; m++){
   for(int n=0; n<3; n++){
if(vsum[n]==rsum[m]){
ruudud[3][3].setText("Õige!");
 }else{
 ruudud[3][3].setText("Vale!");
      }
                         }
                         }
    }
 }