#include <iostream>
#include <algorithm>
using namespace std;

int main() {
	int t;
	cin >> t;
	long long a[3] = {};
	while (t--) {
		cin >> a[0] >> a[1] >> a[2];
		sort(a, a + 3);
		if (a[0] == a[1] && a[1] == a[2] && a[2] == 0) {
			cout << 0 << endl;
		}
		else if (a[0] == a[1] && a[1] == 0) {
			cout << -1 << endl;
		}
		else if (a[0] == a[1] && a[1] == a[2] && a[2] == 1) {
			cout << -1 << endl;
		}
		else if (a[0] == 0 && a[1] != a[2] && a[1] == 1) {
			cout << -1 << endl;
		}
		else if (a[0] + a[1] == a[2]) {
			cout << a[0] + a[1] << endl;
		}
		else if (a[0] + a[1] < a[2]) {
			cout << a[0] + a[1] + ((a[2] - a[1] - a[0]) * 3) << endl;
		}
		else if (a[0] + a[1] > a[2]) {
			long long ans;
			long long x = a[1] - a[0];
			a[1] = a[0];
			a[2] -= x;
			ans = x;
			x = a[2] - a[0];
			ans += x + x;
			a[0] -= x;
			a[1] = a[2] = a[0];
			ans += (a[2] / 2) * 3;
			if (a[0] % 2) {
				ans += 4;
			}
			cout << ans << endl;
		}
	}
}