import java.util.Calendar;

public class Main {

    public static void main(String[] args) {
	// write your code here
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, 2010);
        cal.set(Calendar.WEEK_OF_YEAR, 1);
        cal.add(Calendar.WEEK_OF_YEAR, -1);

        System.out.println(cal.get(Calendar.YEAR)); // Returned 2010 instead of 2009

    }
}