include iostream using namespace std class Triad public int int int Tr

#include <iostream>
using namespace std;


class Triad{
public: 
	int a;
	int b;
	int c;
	Triad(){ a = 0; b = 0; c = 0; }
	void increment_a(){ a++; }
	void increment_b(){ b++; }
	void increment_c(){ c++; }
	void show(){
		cout  << a << "  " << b << "  " << c << endl;
	}
};

class Date :public Triad{
private:
	int year;
	int month;
	int day;
public:
	Date(int inDay, int inMonth, int inYear){
		day = inDay;
		month = inMonth;
		year = inYear;
	}
	void change_date(int k){
		if (k / 365 > 0) {
			year = year + k / 365;
			k = k - 365 * (k / 365);
		}
		if (k / 31 > 0){
			if (month + k / 31 > 12){
				month = (month + k / 31) % 12;
				year = year + 1;
				k = k - 31 * (k / 31);
			}
			else{
				month = month + k / 31;
				k = k - 31 * (k / 31);
			}			
		}
		if (day + k > 31){
			day = (day + k) % 31;
			month = month + 1;
			if (month > 12){
				month = 1;
				year = year + 1;
			}
		}
		else{
			day = day + k;
		}
		
	}
	void show_date(){
		cout << day << "-" << month << "-" << year << endl;
	}

};

int _tmain(int argc, _TCHAR* argv[])
{
	Date D(12,3,1994);
	D.show_date();
	D.change_date(56);
	D.show_date();
	return 0;
}