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