import java.util.Collections;
import java.util.Vector;
public class Main {
public static void main(String[] args) {
Vector<String> v = new Vector<String>();
v.add("A");
v.add("B");
v.add("C");
v.add("D");
v.add("E");
System.out.println(v);
Collections.reverse(v);
System.out.println(v);
}
}
/*
[A, B, C, D, E]
[E, D, C, B, A]
*/
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