#include "Date.h"
#include <iostream>
#include <cstdlib>

int main(int argc, char **argv) {
	int d,m,y,add;
	if (argc!=5) {
		cerr << "Usage : "<<argv[0]<<" day month year days_to_add\n";
		return 1;
	}

	d = atoi(argv[1]);
	m = atoi(argv[2]);
	y = atoi(argv[3]);
	add = atoi(argv[4]);

	if (!(d>0&&m>0&&y>0&&add>0)) {
		cerr << "day month year and add must all be positive integers\n";
		return 2;
	}

	Date date(d,m,y);
	date.add_days(add);
	
	cout << date.get_day() << '/' << date.get_month() << '/' << date.get_year() << '\n';
}