public class Node {
    private int idata; 		// data
    private Node next;		// reference
    public Node(int x) {
	idata = x; next = null;
    }
    public String toString() {
	return idata+"";
    }
    public void setNext(Node next) {
	this.next=next;
    }
    public Node getNext() {
	return next;
    }
    public int getIdata() { return idata; } 
}