C++ linked list. How to add elements from the keyboard?

#include <iostream>

using namespace std;

//Linked List: Delete a node at nth position

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

Node* head; //Global

void Insert(int data) { //Insert an integer at the end of list
	Node* temp1 = new Node;
	temp1->data = data;
	temp1->next = head;
	head = temp1;
}

void Print() { //Print all elements in the list
	Node* temp1 = head;
	while (temp1 != NULL) {
		cout << " " << temp1->data;
		temp1 = temp1->next;
	}
	cout << endl;
}

void Delete(int n) { //Delete node at position n
	Node* temp1 = head;
	if (n == 1) {
		head = temp1->next; //head now points to second node
		delete temp1;
		return;
	}
	for (int i = 0; i < n - 2; i++)
		temp1 = temp1->next; //temp1 points to (n - 1)th Node
	Node* temp2 = temp1->next; //nth Node
	temp1->next = temp2->next; // (n + 1)th Node
	delete temp2;

}

int main() {

    head = NULL; //Empty list
    while(cin>>num)
{
Insert(num);
}
  
    Print();
    int n;
    cout << "Enter a position" << endl;
    cin >> n;
    Delete(n);
    Print();
    return 0;
}