Write a C++ function that will take following parameters.

1. head

2. value- an integer value to be add to the beginning of the linked list

The structure for a node is given as Node and it is already defined.

If the list is empty, set the head pointer to the new node.

Your function should return the head of the linked list after the insertion operation.

Node* insertAtBeginning(Node* head, int value); 

struct Node { int data; Node *next; }; 

For example:

Test	Result
//5->4->3->2->1 //data = 6	6->5->4->3->2->1