#include <iostream>
using namespace std;

int main() {
	int input;
	long sum=0;
	cin >>input;
	long *ip = new long[input];
	for(int i =0; i<input;i++){
		cin >> ip[i];
		sum+=ip[i];
	}
	cout << sum << endl;
	
	delete[] ip;
	return 0;
}