#5 - Informatyka - 16.03.2020

#include <iostream>

using namespace std;
int suma[100];

int main() {
    int t, ilosc;
    cin >> t;
    for(int i = 0; i < t; i++) {
        cin >> ilosc;
        int suma2 = 0;
        for(int j = 0; j < ilosc; j++) {
            cin >> suma2;
            suma[i] = suma[i] + suma2;
        }
    }
    for(int i = 0; i < t; i++) {
        cout << suma[i] << endl;
    }


    return 0;
}