class Employee
{
  public:
    int  GetAge() const;
    void SetAge(int age);
    int  GetYearsOfService() const;
    void SetYearsOfService(int years);
    int  GetSalary() const;
    void SetSalary(int salary);

  private:
    int itsAge;
    int itsYearsOfService;
    int itsSalary;
};