/* package whatever; // don't place package name! */
 
import java.util.*;
import java.time.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        List<LocalDate> dates = Arrays.asList(
            LocalDate.of(2019, Month.FEBRUARY, 6),
            LocalDate.of(2018, Month.DECEMBER, 24),
            LocalDate.of(2018, Month.DECEMBER, 25),
            LocalDate.of(2018, Month.NOVEMBER, 6));
        dates.sort(Comparator.naturalOrder());
        dates.forEach(System.out::println);
	}
}

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