#include <bits/stdc++.h>
using namespace std;
int main() {
  int q;
  cin >> q;
  while (q--) {
    int a, b, c;
    cin >> a >> b >> c;
    int temp = min(a, b);
    if (temp * 3 <= a + b + c) {
      cout << temp << endl;
      continue;
    } else {
      cout << (a + b + c) / 3 << endl;
      continue;
    }
  }
  return 0;
}
