class Node{
int val;
Node next;
Node(int val){
this.val=val;
}
}
public class Main
{
public static void main(String[] args) {
Node a = new Node(1);
Node b = new Node(2);
Node c = new Node(3);
Node d = new Node(4);
Node e = new Node(5);
a.next=b;
b.next=c;
c.next=d;
d.next=e;
Node temp=a;
while(temp!=null){
System.out.println(temp.val);
temp=temp.next;
}
}
}