2750.md

BAEKJOON

import java.util.ArrayList; import java.util.Scanner;

public class Main{

public static void main(String[] args) {

	Scanner sc = new Scanner(System.in);

	int n = sc.nextInt();

	ArrayList<Integer> list = new ArrayList<Integer>();

	for (int i = 0; i < n; i++) {
		int num = sc.nextInt();
		list.add(num);
		for(int j=0; j<i; j++) {
			if(list.get(j)==num) 
				list.remove(i);
		}
			
	}
	
	list.sort(null);
	
	for(int r : list)
	System.out.println(r);
}

}