#include<iostream>
using namespace std;

int main()
{
	unsigned long long q, *d, *x, *t, i, j, a;
	cin >> q;
	d = new unsigned long long[q];
	x = new unsigned long long[q];
	t = new unsigned long long[q];
	for (i = 0; i < q; i++)cin >> d[i] >> x[i] >> t[i];

	for (i = 0; i < q; i++) {
		a = 1;
		for (j = 1; j < d[i]; j++) {
			a = a*(x[i] + j) / j;
			if (a > t[i])break;
		}
		if (a > t[i])cout << "ZETUBOU" << endl;
		else cout << "AC" << endl;
	}
	delete[] t;
	delete[] x;
	delete[] d;
	return 0;
}