import java.util.Scanner;

import java.util.Calendar;

import java.text.DateFormatSymbols;

public class DayOfWeek{

public static void main(String[] args){

Scanner birth = new Scanner(System.in);

System.out.println("How many years do you want to go back?\n");

String input = birth.nextLine();

int i = Integer.parseInt(input);

Calendar calendar = Calendar.getInstance();

calendar.add(Calendar.YEAR, - i);

int weekday = calendar.get(Calendar.DAY_OF_WEEK);

DateFormatSymbols dd = new DateFormatSymbols();

String results = dd.getWeekdays()[weekday];

System.out.println(i + " years ago, it was a " + results + ".");

}

}