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

int t, n;
int main() {
	cin >> t;
	while (t--) {
		int cnt = 0, f;
		cin >> n;
		for (int i = 0; i < n; i++) cin >> f, cnt += f;
		cout << cnt << endl;
	}
}