#include <iostream>

using namespace std;


class Node { 
    public:
        int value;
        Node* next;

        Node(int value) {
            this->value = value;
            next = nullptr;
        }
}; 


class LinkedList {
    private:
        Node* head;
        Node* tail;
        int length;

    public:
        LinkedList(int value) {
            Node* newNode = new Node(value);
            head = newNode;
            tail = newNode;
            length = 1;
        }

        ~LinkedList() {
            Node* temp = head;
            while (head) {
                head = head->next;
                delete temp;
                temp = head;
            }
        }

        void printList() {
            Node* temp = head;
            while (temp != nullptr) {
                cout << temp->value << endl;
                temp = temp->next;
            }
        }

        void getHead() {
            if (head == nullptr) {
                cout << "Head: nullptr" << endl;
            } else {
                cout << "Head: " << head->value << endl;
            }
        }

        void getTail() {
            if (tail == nullptr) {
                cout << "Tail: nullptr" << endl;
            } else { 
                cout << "Tail: " << tail->value << endl;
            }  
        }

        void getLength() {
            cout << "Length: " << length << endl;
        }

};



int main() {
        
    LinkedList* myLinkedList = new LinkedList(4);

    myLinkedList->getHead();
    myLinkedList->getTail();
    myLinkedList->getLength();
    
    cout << "\nLinked List:\n";
    myLinkedList->printList();

    /*  
        EXPECTED OUTPUT:
    	----------------
        Head: 4
        Tail: 4
        Length: 1

        Linked List:
        4

    */
       
}