#include <iostream>
class Time {
  int minutes;
  int hours;
public:
  Time(int hours, int minutes) {
    if(hours >= 0)
      this->hours = hours;
    else 
      this->hours = 0;
    if(minutes >= 0)
      this->minutes = minutes;
    else
      this->minutes = 0;
  }
  Time operator+(const Time &t) {
    Time f(hours, minutes);
    f.minutes += t.minutes;
    if(f.minutes>=60)
      f.minutes -= 60;
    f.hours++;
    f.hours += t.hours;
    if(f.hours > 24)
      f.hours -= 24;
    return f;
  }
  int getMinutes() { return minutes; }
  int getHours() { return hours; }
};

int main() {
  Time t1(10,30), t2(12, 50);
  Time t3 = t1 + t2;
  std::cout << "t3: " << t3.getHours() <<"H, " << t3.getMinutes() << "m\n";
}