#include <iostream>
using namespace std;

int main()
{
  int n=44;

  cout << "n = " << n << endl;
  cout << "&n = " << &n << endl;
  int* pn=&n; // pn holds the address of n
  cout << "pn = " << pn << endl;
  cout << " &pn = " << &pn << endl;
  cout << " *pn = " << *pn << endl;
  int** ppn=&pn; // ppn holds the address of pn
  cout << " ppn = " << ppn << endl;
  cout << " &ppn = " << &ppn << endl;
  cout << " *ppn = " << *ppn << endl;
  cout << "**ppn = " << **ppn << endl;

  return 0;
}