#include <iostream>
#include <vector>
#include <string>

using namespace std;

class Date
{
public:

    Date (const string & date)
    {
//        if (stoi(date.substr(0,2)) > 31 || stoi(date.substr(3,2)) > 12 ||
//               (stoi(date.substr(0,2)) > 29 && stoi (date.substr(3,2)) == 2))
//             throw "Error! A non valid date!";

        this->day = stoi(date.substr(0,2));
        this->month = stoi(date.substr(3,2));
        this->year = stoi(date.substr(6,4));
    }

    string DateAfter (string& date, int days);

    string DateBefore (string& date, int days);

    bool LeapYear (string& date)
    {
        return this->year % 4 == 0;
    }

    void SetDay (unsigned day)
    {
        this->day = day;
    }

    void SetMonth (unsigned month)
    {
        this->month = month;
    }

    void SetYear (unsigned year)
    {
        this->year = year;
    }

    unsigned GetDay ()
    {
        return this->day;
    }

    unsigned GetMonth ()
    {
        return this->month;
    }

    unsigned GetYear ()
    {
        return this->year;
    }

    //compare dates

    bool operator == (Date & other)
    {
        return this->day == other.day && this->month == other.month && this->year == other.year;
    }

    bool operator != (Date & other)
    {
        return this->day != other.day || this->month != other.month || this->year == other.year;
    }

    unsigned DaysBetween ();

private:

    unsigned day;
    unsigned month;
    unsigned year;
//    const static enum daysInMonth = {31;28;31;30;31;30;31;31;30;31;30;31};

};

int main()
{
    cout << "Enter the date in dd.mm.yyyy format: ";
    string new_date;
    getline(cin, new_date);
    try
    {
    Date first_date(new_date);
    }
    catch (const std::exception &ex)
    {
        cout << ex.what() << endl;
    }
    cout << "The year of the first date is " << first_date.GetYear();

    return 0;
}