#include<bits/stdc++.h>
#define REP(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using namespace std;
int main() {
  int T;
  cin >> T;
  REP(_, T) {
    int N;
    cin >> N;
    int ans = 0;
    REP(i, N) {
      int x;
      cin >> x;
      ans += x;
    }
    cout << ans << endl;
  }
}