#include <iostream>
using namespace std;
class Time;
class Date
{public :
Date(){}
Date(int y,int m,int d):year(y),month(m),day(d){}
friend void display(const Date &,const Time &);
int getyear()
{
return year;
}
int getmonth()
{
return month;
}
int getday()
{
return day;
}
private:
int year,month,day;
};
class Time
{public :
Time(){}
Time(int h,int m,int s):hour(h),minute(m),second(s){}
friend void display(const Date &,const Time &);
private:
int hour,minute,second;
};
void display(const Date &d,const Time &t)
{
cout<<d.year<<"/"<<d.month<<"/"<<d.day<<endl;
cout<<t.hour<<":"<<t.minute<<":"<<t.second<<endl;
}
int main()
{
void display(const Date &,const Time &);
int year,month,day;
cin>>year>>month>>day;
Date d1(year,month,day);
int hour,minute,second;
cin>>hour>>minute>>second;
Time t1(hour,minute,second);
display(d1,t1);
return 0;
}