import java.time.*;
import java.time.temporal.*;
import java.time.format.*;
public class Main {
    public static void main(String[] args) {
      findFirstSundayEachMonth();
    }
 
	public static void findFirstSundayEachMonth() {
	    int year = 2021;
	    LocalDate curr = LocalDate.of(year, Month.JANUARY, 1);
	    do {
	        System.out.println(curr.with(TemporalAdjusters.firstInMonth(DayOfWeek.SUNDAY)).format(DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL)));
	        curr = curr.plusMonths(1);
	    } while (curr.getYear() == year);
	}
}

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