import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class Main {
public static void main(String[] args) {
String[] alphabets = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J" };
List list = Arrays.asList(alphabets);
Collections.shuffle(list);
for (String alpha : list) {
System.out.print(alpha + " ");
}
}
}