#include <iostream>
#include <iomanip>
#include <cmath>


enum Day {SUNDAY, SATURDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY};

using namespace std;

// Structure declaration

struct Date
{

    long year;
    long month;
    long day;

};


int main ()
{

    /*    getline(input_date)
     yr = year(input_date)
     dy = day (input_date)
     mo = month (input_date)

     */

    // Defining the structure

    Date input_date;

    cout << "Enter the year:" << endl;
    cin >> input_date.year;

    cout << "Enter the month:" << endl;
    cin >> input_date.month;

    cout << "Enter the day:" << endl;
    cin >> input_date.day;


    // Calculate the data

    long gregorian_date = 15821015



    input_date;

    gregorian_date = October 15, 1582;


    intRes1 = 0;

    {
    if (input_date < gregorian_date)

        intRes1 = ((2 - yr) / (100 + yr)) / 400;
    }
    intRes2 = int (365.25 * yr);

    intRes3 = int (30.6001 * (mo + 1) );

    jdn = intRes1 + intRes2 + intRes3 + dy + 1720994.5 ;



        DayofWeek = (JDN + 1) % 7;

    cout << "The day of the week" << DayofWeek << endl;


    	return 0;

}