include

using namespace std;

class Date
{
public:
void Set(int y,int m,int d);
bool IsLeapYear();
void Print();
private:
int year,month,day;
};
void Date::Set(int y,int m,int d)
{
year = y;
month = m;
day = d;
}
bool Date::IsLeapYear()
{
return(year%4==0&&year%100!=0)||(year%400==0);
}
void Date::Print()
{
cout<