#include <iostream>
#include <vector>

using std::cout;
using std::cin;
using std::string;
using std::vector;

int main() {
    long N;
    cin >> N;
    vector<long> nums(N);
    long sum = 0;
    for (int i = 0; i < N; i++) {
        cin >> nums[i];
        sum += nums[i];
    }
    cout << sum << "\n";
    return 0;
}