#include
using namespace std;
class Time
{
public:
void set();
void show();
private:
int hour=0;
int minute=0;
int sec=0;
};
int main()
{
Time t1;
//t1.set();
t1.show();
while (1);
return 0;
}
/*void Time::set()
{
cin >> hour;
cin >> minute;
cin >> sec;
}*/
void Time::show()
{
cout << hour << ":" << minute << ":" << sec << ":" << endl;
}