#include <iostream>

int main()
{
  
  double lY = 6.67;
  double lZ = 7.8;
  double *lPtr = 0;
  
  cout << "&lY: " << &lY << " &lZ: " << &lZ << " lPtr:" << lPtr << endl << endl;

  cout << "lPtr = &lY" << endl;

  lPtr = &lY;
    
  cout << "lY: " << lY  << " lZ: " << lZ  << " *lPtr: " << *lPtr << endl;
  cout << "&lY: " << &lY << " &lZ: " << &lZ << " lPtr:" << lPtr << endl<< endl;
  
  cout << "*lPtr = 5.45" << endl;

  *lPtr = 5.45;
  cout << "lY: " << lY  << " lZ: " << lZ  << " *lPtr: " << *lPtr << endl<< endl;

  cout << "lPtr = &lZ" << endl;

  lPtr = &lZ;
  cout << "&lY: " << &lY << " &lZ: " << &lZ << " lPtr:" << lPtr << endl<< endl;

  cout << "*lPtr = 3.1415" << endl;

  *lPtr = 3.1415;
  cout << "lY: " << lY  << " lZ: " << lZ  << " *lPtr: " << *lPtr << endl << endl;

  cout << "lZ = 999" << endl;

  lZ = 999;
  cout << "lY: " << lY  << " lZ: " << lZ  << " *lPtr: " << *lPtr << endl;


  return 0;

}