//Ramanujan.java
//find pair of pairs of integers whose sum of cubes equal
// a3+b3=c3+d3
// 1729

import java.awt.*;
import javax.swing.*;

//public class Ramanujan extends JApplet {     
public class Ramanujan {     
    public static void main (String [] args) {
    //public void init() {
	String input;
	int max, i3, j3, k3, l3;
	JTextArea textarea = new JTextArea(30,90);
	textarea.setLineWrap( true );
	textarea.setFont( new Font("Courier",Font.BOLD,14) );
	JScrollPane scrollpane = new JScrollPane(textarea);

	input = JOptionPane.showInputDialog( "Enter max integer to cube (try 12)" );
	max = Integer.parseInt(input);
	
	for (int i=1; i<=max; i++) {
            i3 = i*i*i;
	    for (int j=i+1; j<=max; j++) {
	    	j3 = j*j*j;
	        for (int k=j+1; k<=max; k++) {
	            k3 = k*k*k;
	            for (int l=k+1; l<=max; l++) {
                        l3 = l*l*l;
			if (j3+k3 == i3+l3)
	                    textarea.append(""+i+ 
	                    	            " "+l+
	                    	            " "+j+ 
	                    	            " "+k+ 
	                    	            "   "+i+"\u00B3+"+l+"\u00B3="+
	                    	            i3+"+"+l3+"= "+(i3+l3)+
	                    	            " ="+
	                    	            j+"\u00B3+"+k+"\u00B3="+
	                    	            j3+"+"+k3+
	                    	            "\n"); 
	            }
	        }
	    }
	}
	JOptionPane.showMessageDialog(null, 
				      scrollpane,
				      "Ramanujan pairs",
				      JOptionPane.PLAIN_MESSAGE);
		

    }
}