#include <iostream>

using namespace std;

class Person {
    protected:
        int age;
        string name;

    public:
        Person() {}

        Person(int _age, string _name) : age(_age), name(_name) {}

        void set() {
            cout << "age: "; cin >> age;
            cout << "name: "; cin >> name;
        }

        void get() {
            cout << "age: " << age << endl;
            cout << "name: " << name << endl;
        }
};

class Employee : public Person {
    protected:
        int salary;
        string area;

    public:
        Employee() {}

        Employee(int _age, string _name, int _salary, string _area) : Person(_age, _name), salary(_salary), area(_area) {}

        void set() {
            Person :: set(); //клас Person
            cout << "salary: "; cin >> salary;
            cout << "area: "; cin >> area;
        }

        void get() {
            Person :: get(); //клас Person
            cout << "salary: " << salary << endl;
            cout << "area: " << area << endl;
        }
};

class Engineer : public Employee {
    protected:
        int level;
        string type;

    public:
        Engineer() {}

        Engineer(int _age, string _name, int _salary, string _area, int _level, string _type) : Employee(_age, _name, _salary, _area), level(_level), type(_type) {}

        void set() {
            cout << "Enter info about engineer:" << endl;
            Employee :: set(); //клас Employee
            cout << "level: "; cin >> level;
            cout << "type: "; cin >> type;
            cout << endl;
        }

        void get() {
            cout << "Info about engineer:" << endl;
            Employee :: get(); //клас Employee
            cout << "level: " << level << endl;
            cout << "type: " << type << endl;
            cout << endl;
        }
};

class Servant : public Person {
    protected:
        int yearsService;

    public:
        Servant() {}

        Servant(int _age, string _name, int _yearsService) : Person(_age, _name), yearsService(_yearsService) {}

        void set() {
            cout << "Enter info about servant:" << endl;
            Person :: set(); //клас Person
            cout << "years of service: "; cin >> yearsService;
            cout << endl;
        }

        void get() {
            cout << "Info about servant:" << endl;
            Person :: get(); //клас Person
            cout << "years of service: " << yearsService << endl;
            cout << endl;
        }
};

int main() {

    Engineer engineer;

    engineer.set(); //клас Engineer

    engineer.get(); //клас Engineer

    Servant servant;

    servant.set(); //клас Servant

    servant.get(); //клас Servant

}