#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<int, int>;

int Q;
int D[10010];
int X[10010];
ll T[10010];

int main() {
  cin.tie(0);
  ios_base::sync_with_stdio(false);
  cout << fixed << setprecision(10);
  
  cin >> Q;
  for (int i = 0; i < Q; i++) {
    cin >> D[i] >> X[i] >> T[i];
  }

  for (int i = 0; i < Q; i++) {
    ll a = 1;
    bool tle = false;
    for (ll j = 1; j <= D[i] - 1; j++) {
      a *= (X[i] + D[i] - j);
      a /= j;
      if (a > T[i]) {
        tle = true;
        break;
      }
    }
    cout << (tle ? "ZETUBOU" : "AC") << endl;
  }

  return 0;
}