class employee {
	public $surname;
	public $name;
	public $patronymic;
	
	public function get_age()
	{
		return $this->age;
	}
	public function set_age($val)
	{
		$val = intval($val);
		if ($val >= 18 && $val <= 65)
		{
			$this->age = $val;
			return true;
		}
		else return false;
	}
	public function get_info()
	{
		return $this->surname." ".$this->name." ".$this->patronymic;
	}
	public function get_full_info()
	{
		return $this->get_info()." (".$this->age.")";
	}
	
	private $age;
}