/* package whatever; // don't place package name! */
 
import java.util.*;
import java.util.stream.*;
import java.lang.*;
import java.io.*;
import java.time.format.*;
import java.time.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
 
    static LocalDateTime dateTime = LocalDateTime.now();
 
    static Stream<String> repeatedRuns(String c, int start, int end) {
        return IntStream
            .rangeClosed(start, end)
            .mapToObj(len -> 
                Collections.nCopies(len, c).stream().collect(Collectors.joining(""))
            );
    }
 
    static void printDateTime(String pattern) {
        DateTimeFormatter dtf = DateTimeFormatter.ofPattern(pattern);
        System.out.println(pattern + ", " + dtf.format(dateTime));
    }
 
    public static void main(String[] args) {
        Stream<String> patterns = repeatedRuns("E", 1, 4)
                .flatMap(e -> repeatedRuns("M", 1, 4).map(m -> e + " " + m))
                .map(em -> em + " d");
 
        patterns.forEach(Ideone::printDateTime);
    }
 
    }

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