import java.util.HashSet;
import java.util.Set;

public class Baseline {
  static void printDuplicateStatus(int[] nums) {
    Set<Integer> seen = new HashSet<>();
    boolean duplicate = false;
    for (int i = 0; i < nums.length; i++) {
      if (!seen.add(nums[i])) {
        duplicate = true;
      }
    }
    if (duplicate == true) {
      System.out.println("Duplicate!");
    } else {
      System.out.println("All unique");
    }
  }

  public static void main(String[] args) {
    int[] nums = { 14, 22, 7, 31, 22, 9 };
    printDuplicateStatus(nums);
  }
}