package m.shin;
import java.util.Scanner;
public class Con79 {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int N = s.nextInt();
		int[] l = new int[6];
		for(int i = 0;i < N;i++){
			l[s.nextInt()-1]++;
		}
		s.close();

		int Level = 1;
		for(int i = 1;i < 6;i++){
			if(l[i] >= l[i-1]){
				Level = i+1;
			}
		}
		System.out.println(Level);

	}

}