#include <iostream>

class Date {
private:
    int d, m, y;

public:
    Date(int dd = 0, int mm = 0, int yy = 0);
    void addDay();
    friend Date operator ++(Date& D);
    friend Date operator ++(Date& D, int);
    void Print();
};

Date::Date(int dd, int mm, int yy): d(dd), m(mm), y(yy){};

Date operator ++(Date& D) {
    D.addDay();
    return D;
}
Date operator ++(Date& D, int) {
    Date tmp = Date(D);
    D.addDay();
    return tmp;
}

void Date::addDay() {
    this->d++;
}

void Date::Print() {
    std::cout << this->d << "," << this->m << "," << this->y << std::endl;
}

int main() {
    Date aDay = Date(12,3,2023);
    aDay++.Print();
    aDay.Print();
    (++aDay).Print();
    aDay.Print();
    return 0;
}