#include <set>
#include <string>

using namespace std;


// Программист. Знает несколько языков программирования
class Programmer {
public:
    Programmer(string name, int age, string gender) : name_(name), age_(age), gender_(gender) {};

    string GetName() const {
        return name_;
    }
    int GetAge() const {
        return age_;
    }
    string GetGender() const {
        return gender_;
    }

     void AddProgrammingLanguage(string language) {
        programming_languages_.insert(language);
    }
    bool CanProgram(string language) const {
        return programming_languages_.count(language);
    }

private:
    string name_;
    int age_;
    string gender_;
    set<string> programming_languages_;
};


// Рабочий. Владеет несколькими специальностями
class Worker {
public:
    Worker(string name, int age, string gender) : name_(name), age_(age), gender_(gender) {};

    string GetName() const {
        return name_;
    }
    int GetAge() const {
        return age_;
    }
    string GetGender() const {
        return gender_;
    }

    void AddSpeciality(string speciality) {
        specialties_.insert(speciality);
    }
    bool HasSpeciality(string speciality) const {
        return specialties_.count(speciality);
    }

private:
    string name_;
    int age_;
    string gender_;
    set<string> specialties_;
};