#include <iostream>
#include <string>
using namespace std;

class time {
private:
    int hour, minute, sec, millisec;
public:
    time() {
        cout << "Вызвался конструктор по умолчанию\n";
        cout << this << "\n";
        hour = 0;
        minute = 0;
        sec = 0;
        millisec = 0;
    }
    time(int h, int m, int s, int ms) {
        cout << "Вызвался конструктор с параматром\n";
        cout << this << "\n";
        hour = h;
        minute = m;
        sec = s;
        millisec = ms;
    }
    ~time() {
        cout << "Вызвался деструктор " << this << "\n";
    }
    void SetHour(int h);
    void SetMinute(int m);
    void SetSec(int s);
    void SetMillisec(int ms);
    void Print();
    int GetHour() const;
    int GetMinute() const;
    int GetSec() const;
    int GetMillisec() const;
    time operator -(time & other) {
        cout << "Вызвался оператор -\n" << this << "\n";
        time temp;
        int sM1 = 0, sM2 = 0,sM3=0;
        sM1 = this->hour * 3600000 + this->minute * 60000 + this->sec * 1000 + this->millisec;
        sM2 = other.hour * 3600000 + other.minute * 60000 + other.sec * 1000 + other.millisec;
        sM3 = abs(sM1 - sM2);
        temp.millisec = sM3 % 1000;
        sM3 /= 1000;
        temp.hour = sM3 / 3600;
        while (temp.hour > 23) temp.hour -= 24;
        sM3 %= 3600;
        temp.minute = sM3 / 60;
        while (temp.minute > 59) temp.minute -= 60;
        sM3 %= 60;
        temp.sec = sM3;
        while (temp.sec > 59) temp.sec -= 60;

        return temp;
    }
    time (const time & other) {
        cout << "Вызвался конструктор копирования\n";
        cout << this << "\n";
        this->hour = other.hour;
        this->minute = other.minute;
        this->sec = other.sec;
        this->millisec = other.millisec;
    }
    time operator +(time & other) {
        cout << "Вызвался оператор +\n" << this << "\n";
        time temp;
        int sM1 = 0, sM2 = 0, sM3 = 0;
        sM1 = this->hour * 3600000 + this->minute * 60000 + this->sec * 1000 + this->millisec;
        sM2 = other.hour * 3600000 + other.minute * 60000 + other.sec * 1000 + other.millisec;
        sM3 = sM1 + sM2;
        temp.millisec = sM3 % 1000;
        sM3 /= 1000;
        temp.hour = sM3 / 3600;
        while (temp.hour > 23) temp.hour -= 24;
        sM3 %= 3600;
        temp.minute = sM3 / 60;
        while (temp.minute > 59) temp.minute -= 60;
        sM3 %= 60;
        temp.sec = sM3;
        while (temp.sec > 59) temp.sec -= 60;

        return temp;
    }
    time & operator = (const time & other) {
        this->hour = other.hour;
        this->minute = other.minute;
        this->sec = other.sec;
        this->millisec = other.millisec;
    }
};
void time::SetHour(int h) {
    hour = h;
}
void time::SetMinute(int m) {
    minute = m;
}
void time::SetSec(int s) {
    sec = s;
}
void time::SetMillisec(int ms) {
    millisec = ms;
}
int time::GetHour() const {
    return hour;
}
int time::GetMinute() const {
    return minute;
}
int time::GetSec() const{
    return sec;
}
int time::GetMillisec() const {
    return millisec;
}
void time::Print() {
    cout << "Время: " << GetHour() << ":" << GetMinute() << ":" << GetSec() << ":" << GetMillisec() << "\n\n";
}
int main()
{
    setlocale(LC_ALL, "Russian");
    int h, m, s, ms;
    cin >> h >> m >> s >> ms;
    time to(h,m,s,ms);
    to.Print();

    time to2(12, 0, 34, 0);
    to2.Print();

    time to3 = to + to2;
    to3.Print();

    time to4 = to - to2;
    to4.Print();

    time to5 = to;
    to5.Print();

    return 0;
}