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

int main() {
  int t;
  cin >> t;
  vector<int> ans;
  while (t--) {
    int n;
    cin >> n;
    int a = 0;
    for (int i = 0; i < n; i++) {
      int f;
      cin >> f;
      a += f;
    }
    ans.push_back(a);
  }
  for (const auto &a : ans) {
    cout << a << '\n';
  }
  return 0;
}