#include <iostream>
#include <iomanip>
using namespace std;
     
class Time{
     
private:
     
	int min;
	int hour;

public:

	Time() {hour = 0, min = 0;} // parameterized constructor
    
	Time(int inHours, int inMinutes){ 
		if(inHours >= 0 && inHours <= 23){hour = inHours;}
		if(inMinutes >=0 && inMinutes <= 59) {min = inMinutes;}
	}
                   
     

	void setTime(int inHours, int inMinutes){
		if(inHours >= 0 && inHours <= 23){hour = inHours;}
		if(inMinutes >=0 && inMinutes <= 59) {min = inMinutes;}
		}

     void showTime(){
		 cout << setfill('0');
		 cout << setw(2) << hour << ":" << setw(2) << min << endl;// for (2) 00:00
	 }
     
	Time copyTime( Time &inTime){
		hour = inTime.hour; 
		min = inTime.min;
	
	return inTime;
            }

	void addTime(int f, int g){
			
			

			hour = hour + f;
			min = min + g ;


			if( min >= 60){
				
				hour = hour +1;
				min = min - 60;
			}

			while (hour > 24){
			
				hour = hour - 24;
			} 

			if(hour == 24){
				if(min>0){
					hour =0;
				}
			}
			}
     
			
		
    };
     
     
     
int main(){
     
		Time t1;
        t1.showTime();

		Time t2;
		t2.setTime(18, 30);
		t2.showTime();
		cout<< "After calling from settime,time 1 is ";
		t1.setTime(8, 47);
		t1.showTime();

		Time t3;
		t3.copyTime(t1);
		t3.addTime(18, 15);
		t3.showTime();

		t2.addTime(36, 11);
		t2.showTime();
     
     
     
        return 0;
    }