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

class Time{

public:

	int min;
	int hour;

	Time(int min = 0, int hour = 0){



		if (min >= 0) {
			if (min > 59) { min = 0; }
		}
		else{ min = 0; }

		if (hour >= 0) {
			if (hour > 23) { hour = 0; }
		}
		else { hour = 0; }
	}

	int setTime(int x, int y){
		min = x;
		hour = y;

		if (x >= 0) {
			if (x > 59) { min = 0; }
		}
		else{ min = 0; }

		if (y >= 0) {
			if (hour > 23) { hour = 0; }
		}
		else { hour = 0; }

		return min, hour;

	}

	void showTime(){
		cout << setfill('0');
		cout << setw(2) << hour << ":" << setw(2) << min << endl;

	}

	Time copyTime(Time x){

	}

};




int main(){

	Time t1;
	t1.setTime(2, 3);
	t1.showTime();



	return 0;
}