class Solution {

    public static  Node insert(Node head,int data) {
        //Complete this method
        Node newNode = new Node(data);
        newNode.next = null;
        
        if(head == null){
            return head = newNode;
        }
        
        Node curr = head;
        while(curr.next != null){
            curr = curr.next;
        }
        curr.next = newNode;
        return head;
    }