import java.util.Scanner;

public class DayOfTheWeek {
    private static Scanner scan;

	public static void main(String[] args) {
		scan = new Scanner(System.in);
		int day, month, year, weekday;
		String[] weekdays = {"Søndag", "Mandag", "Tirsdag", "Onsdag", "Torsdag", "Fredag", "Søndag", "Lørdag",};

		System.out.print("Enter the date in a DD MM YYYY Forat: ");
		day = scan.nextInt();
		month = scan.nextInt();
		year = scan.nextInt();

		// Math
		int Q = day;
		int M = month;
		int K = year % 100;
		int J = year / 100;
		weekday = (Q+((13*(M+1))/5)+K+(K/4)+(J/4)+(6*J))%7;

		System.out.println(day + " " + month + " " + year + " er en " + weekdays[weekday]);
	}
}
//https://docs.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html
//https://en.wikipedia.org/wiki/Zeller%27s_congruence