import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        int[] num = new int[n];
        for(int i = 0; i < n; i++) {
            num[i] = scan.nextInt();
        }
        int sum = 0;
        for(int i = 0; i < num.length; i++) {
            sum += num[i];
        }
        System.out.println(sum);
    }
}