/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* 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<String> l = Arrays.asList("mean", "max", "min", "std", "flag");
		Collections.sort(l, new Comparator<String>() {
		     @Override
		     public int compare(String o1, String o2) {
		         return Integer.compare(ListOrder.valueOf(o1).getValue(), ListOrder.valueOf(o2).getValue());
		     }
		});
		System.out.println(l);
	}
}

enum ListOrder{
    mean(0), 
    std(1), 
    max(2), 
    min(3), 
    flag(100);

    private int value;

    private ListOrder(int value) {
        this.value = value;
    }

    public int getValue() {
        return value;
    }
}