#include <iostream>

using namespace std;

int main() {
    int N, M;
    while (cin >> N) {
        for (int i = 0; i < N; i++) {
            int result = 0;
            int val;
            cin >> M;
            for (int j = 0; j < M; j++) {
                cin >> val;
                result += val;
            }
            cout << result << endl;
        }
    }
    return 0;
}