#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	long long sum = 0;
	while(cin >> a) {
		for (int i = 1;i <= a; i++) {
    	    cin >> b;
    	    sum += b;
	    }
	    cout << sum << endl;
	    sum = 0;
	}
	return 0;
}