class ListNode{
	private int data;
	private ListNode next = null;
	
	ListNode(int data){
		this.data = data;
	}
	
	public int getData(){ return this.data; }
	public ListNode getNext(){ return this.next; }
	
	public void setData(int data){ this.data = data; }
	public void setNext(ListNode next){ this.next = next; }
}