import java.time.LocalDate;
import java.time.Year;
import java.time.temporal.WeekFields;
import java.util.Locale;
 
public class Main {
    public static void main(String[] args) {
        // Test
        int weekNumber = 34;
        System.out.println(getFirstDayOfWeek(weekNumber, Locale.UK));
        System.out.println(getFirstDayOfWeek(weekNumber, Locale.US));
    }
 
    static LocalDate getFirstDayOfWeek(int weekNumber, Locale locale) {
        return LocalDate
                .of(Year.now().getValue(), 2, 1)
                .with(WeekFields.of(locale).getFirstDayOfWeek())
                .with(WeekFields.of(locale).weekOfWeekBasedYear(), weekNumber);
    }
}

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