#include <iostream>
using namespace std;
class Time
{
public:
    void setTime();
	void showTime();
	int hour, minute, sec;
};

void fun(Time &t)
{   t.hour=23;  }

void Time::setTime()          
{   cin>>hour>>minute>>sec;   }

void Time::showTime()         
{   cout<<hour<<":"<<minute<<":"<<sec<<endl; 
}	

int main()
{   Time t;
    t.setTime(); 
    fun(t);
    t.showTime(); 
    return 0; 
}