#include <iostream>
#include<vector>
using namespace std;

int main(void) {
	
	int N,i,gokei=0;
	vector<int> num;
	cin >> N;
	num.resize(N);
	for (i = 0; i < N; i++) {
		cin >> num[i];
		gokei += num[i];
	}
	cout << gokei;

	return 0;
}