/* 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
	{
        Set<String> set2 = new HashSet<>();
        set2.add("bXYZZZ");
        set2.add("c");
        set2.add("a");
        set2.add("d");
        set2.add("e");
        set2.forEach(System.out::println);
    }
}

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