#include <bits/stdc++.h>

using namespace std;

long long a[100000005], n, s = 0;
int main() {
  freopen("bai1.inp" , "r" , stdin);
  freopen("bai1.out" , "w" , stdout);
  cin >> n;
  for (long long i = 1; i <= n; ++i) cin >> a[i]; s += a[i];
  cout << s;
  return 0;
}

#include <bits/stdc++.h>
using namespace std;

int main() {
    long long s, n, res = 0;
    freopen("bai11.inp" , "r" , stdin);
    freopen("bai11.out" , "w" , stdout);
    cin >> n;
    for (long long i = 1; i <= n; i++){
        cin >> s; 
        res += s;
    }
    cout << res;
    return 0;
}