#include <iostream>
#include <string>
using namespace std;

/**
 * Definition of a Person
 * identified by its name and age
 */
class Person {
// ==============================================
// data members
// ==============================================
protected:
	// name of the person (default value is empty string)
	string name;
	// age of the person (default value is 0)
	int age;

// ==============================================
// methods
// ==============================================
public:
	/**
	 * default constructor
	 */
	Person() {
		name = "";
		age = 0;
	}
	
	/** 
	 * constructor with 2 arguments
	 * @param n name of the person
	 * @param a age of the person
	 */
	Person(string n, int a) {
		name = n;
		age = a;
	}
	
	/**
	 * getter for name
	 * @return name of the person
	 */
	string get_name() {
		return name;
	}
	
	/**
	 * getter for age
	 * @return age of the person
	 */
	int get_age() {
		return age;
	}
	
	/**
	 * setter for name
	 * @param n name of the person
	 */
	void set_name(string n) {
		name = n;
	}
	
	/**
	 * setter for age
	 * @param a age of the person
	 */
	void set_age(int a) {
		age = a;
	}
	
	/**
	 * print class contents
	 * @param output stream reference
	 * @return output stream reference
	 */
	ostream& print(ostream& out) {
		out << name << ", " << age;
		return out;
	}
	
	friend ostream& operator<<(ostream& out, Person& p) {
		return p.print(out);
	}
};