import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int N = sc.nextInt(); long[] a = new long[N]; for (int i = 0; i < N; i++) { a[i] = sc.nextInt(); } long ans = 0; for (int i = 0; i < N; i++) { ans += a[i]; } System.out.println(ans); } }