import java.util.Arrays;
import java.util.Scanner;

public class NickyEnMark {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int n = scanner.nextInt();
		int[] m = new int[n];
		for (int i = 0; i < n; i++) {
			m[i] = scanner.nextInt();
		}

		Arrays.sort(m);

		System.out.println(m[0] + m[1]);
	}
}