#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES

#ifdef __unix__
#include <bits/stdc++.h>
#else
#include "bits\stdc++.h"
#endif
#include <vector>
#include <set>
#include <string>
#include <queue>
#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

ull pow(ull x,ull n) {
   ull res = 1;
   while(n > 0) {
      if(n&1) res = res * x;
      x = x * x;
      n >>= 1;
   }
   return res;
}

int main() {
  int i,j,k;
  int q;
  int d,x,t;
  cin >> q;
  while(cin >> d >> x >> t) {
    double a=1;
    for(i=0;i<x;i++) {
      a *= d-1+i;
      a /= i+1;
      if(a > t) goto end;
    }
  end:
    if(a > t) puts("ZETUBOU");
    else puts("AC");
  }
  return 0;
}