#include<cstdio>
using namespace std;
typedef long long ll;

ll q, d, x, t;

ll nCk(ll n, ll k, ll mx) {
  if (k == 0) return 1;
  ll temp = nCk(n-1, k-1, mx);
  if (temp > mx) return temp;
  return nCk(n-1, k-1, mx) * n / k;
}

int main() {
  scanf("%lld", &q);
  for (ll i = 0; i < q; i++) {
    scanf("%lld%lld%lld", &d, &x, &t);
    if (nCk(x+d-1, d-1, t) > t) printf("ZETUBOU\n");
    else printf("AC\n");
  }
}