import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); int num = sc.nextInt(); int[] arr = new int[num]; ArrayList<Integer> list = new ArrayList<Integer>(); for(int i = 0;i<arr.length;i++){ arr[i]=sc.nextInt(); if(!list.contains(arr[i])){ list.add(arr[i]); } } Collections.sort(list); Iterator it = list.iterator(); while(it.hasNext()){ System.out.println(it.next()); } } }