#include <algorithm>
#include <iostream>
#include <vector>

using namespace std;

void solve() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (auto &i : a)
    cin >> i;

  cout << min(a[0] + a[1], 2 * a[0]) << "\n";
}

int main() {
  int t;
  cin >> t;
  while (t--)
    solve();
}