#include <iostream>
#include <string>
#include <vector>

using namespace std;

void log(string event, string description)
{ /* let's pretend this makes an official record in a file somewhere */ }

class person
{ protected:
    string fname, lname, addr, phone;

  public:
    person(string f, string l, string a, string p)
    { fname = f;
      lname = l;
      addr = a;
      phone = p; }

    void print()
    { cout << fname << " " << lname << " of " << addr << ", phone " << phone << "\n"; }

    string get_name()
    { return fname + " " + lname; }

    string get_address()
    { return addr; }

    string get_phone()
    { return phone; }

    void change_name(string f, string l)
    { log("name change from ", fname + " " + lname + " to " + f + " " + l);
      fname = f;
      lname = l; }

    void change_address(string a)
    { log("address change for ", fname + " " + lname + " to " + a);
      addr = a; }

    void change_phone(string p)
    { log("phone change for ", fname + " " + lname + " to " + p);
      phone = p; } };

int main()
{ vector<person *> database;
  database.push_back(new person("Joe", "Ant", "123 Cat St", "3059990001"));
  database.push_back(new person("Jenny", "Ant", "123 Cat St", "3059990001"));
  database.push_back(new person("Amy", "Bat", "987 Dog Ave", "7860106734"));
  database.push_back(new person("Fred", "Horse", "66 Main St", "5552679742"));
  database.push_back(new person("Betty", "Thing", "456 Dog Ave", "2010012694"));

  database[2]->change_name("Amy", "Horse");

  for (int i = 0; i < database.size(); i += 1)
    database[i]->print(); }