#include <iostream>
using namespace std;
typedef long long ll;
int main(){
  ll q,d,x,t;
  cin>>q;
  for(int i=0; i<q; ++i){
    cin>>d>>x>>t;
    d-=1;
    ll y=0;
    if(d==0){
      y=1;
    } else if(d==1){
      y=x+1;
    } else if(d==2){
      for(int j=1; j<=x+1; ++j){
        y+=j;
      }
    } else if(d==3){
      for(int j=1; j<=x+1; ++j){
        ll z=0;
        for(int k=1; k<=j; ++k){
          z+=k;
        }
        y+=z;
      }
    } else {
      ll e=d-1;
      for(int j=1; j<=x+1; ++j){
        ll z=1;
        for(int k=0; k<j*e; k+=e){
          z+=k;
        }
        y+=z;
      }
    }
    if(y<=t){
      cout<<"AC"<<endl;
    } else {
      cout<<"ZETUBOU"<<endl;
    }
  }
  return 0;
}