import java.util.Arrays;
import java.util.Scanner;
import java.util.TreeSet;
class Main {
// if there is no duplicate
// if there is duplicate use TreeSet
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
// int a[] = {1,23,-9,12,34,5,67};
// Arrays.sort(a);
// int n = scan.nextInt();
// System.out.println(a[n-1]);
int a[] = {1,23,-9,12,34,5,67,-9,1};
int n = 3;
TreeSet<Integer> set = new TreeSet<>();
for(int i: a) set.add(i);
int i=1;
for(int s: set) {
if(i==n) {System.out.println(s); break;}
i++;
}
}
}
