class Practice
{
 
	Node head;
 
	static class Node
	{
       int data;
       Node next;
 
       Node(int d) //constructer
       {
       	data=d;
       	next=null;
       }
 
	}
 
	public static void main(String args[])
	{
            Practice llist = new Practice();
            llist.head = new Node(1);
            Node second = new Node(2);
            Node third = new Node(3);
 
        llist.head.next= second;
 
        second.next=third;
 
        System.out.println(llist);
 
	}
 }

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