/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class Node{
	String data;
	Node otherNode;
	Node(String data){
		this.data=data;
	}
	Node getOtherNode(){
		return otherNode;
	}
	@Override
	public String toString(){
		return this.data;
	}
}
 
 
class Ideone
{
 
	public static void main (String[] args) throws java.lang.Exception
	{
 
		Node first = new Node("FIRST");
		Node second = new Node("SECOND");
		first.otherNode = second;
		second.otherNode = first;
 
		System.out.println(first.getOtherNode());
	}
}

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