#include <iostream>
using namespace std;

class Time {
private:
	int hour;
	int minute;
	int second;

public:
void PrintTime();
void SetTime();
void SetTime(int, int, int);
void CheckTime();
int CalcSeconds();
Time addTime(Time);
};



int main() {
	int secsA, secsB;
	Time ClockA, ClockB, ClockC;
	cout << "Clock A : " << endl <<  "---------" << endl ;
	ClockA.SetTime();
	ClockA.CheckTime();
	ClockA.PrintTime();
	cout << "Clock B : " << endl << "---------" << endl ;
	ClockB.SetTime();
	ClockB.CheckTime();
	ClockB.PrintTime();
	secsA = ClockA.CalcSeconds();
	secsB = ClockB.CalcSeconds();
	cout << "Sunolo deuteroleptwn Clock A: " << secsA << endl ;
	cout << "Sunolo deuteroleptwn Clock B: " << secsB << endl ;
	ClockC = ClockA.addTime(ClockB);
	cout << "Clock C : " << endl << "---------" << endl ;
	ClockC.PrintTime();
	return 0;
}

Time Time::addTime(Time ClockB){
	int kratoumeno = 0;

	Time Clock;
	Clock.second = second + ClockB.second ;
	if (Clock.second > 59){
		Clock.second -= 60;
		kratoumeno=1;
	}
	Clock.minute = minute + ClockB.minute + kratoumeno ;
	kratoumeno = 0;
	if (Clock.minute > 59){
		Clock.minute -= 60;
		kratoumeno=1;
	}
	Clock.hour = hour + ClockB.hour + kratoumeno ;
	if (Clock.hour > 23)
		Clock.hour -= 24;
	
	return Clock;
}

int Time::CalcSeconds(){
	return 3600*hour+60*minute+second;
}

void Time::CheckTime(){
	if (hour > 23 || hour < 0)
		hour = 0;
	if (minute > 59 || minute < 0)
		minute = 0;
	if (second > 59 || second < 0)
		second = 0;
}

void Time::SetTime(){
	cout << "Dwse thn wra: " ;
	cin >> hour ;
	cout << "Dwse ta lepta: " ;
	cin >> minute ;
	cout << "Dwse ta deuterolepta: " ;
	cin >> second ;
}

void Time::PrintTime(){
	if (hour < 10){
		cout << "0";
	}
	cout << hour << ":" ;
	if (minute < 10){
		cout << "0";
	}
	cout << minute << ":" ;
	if (second < 10){
		cout << "0";
	}
	cout << second << endl ;
}