#include <iostream>

using namespace std;
typedef long long LL;

int main(){
    int Q;
    cin >> Q;
    for(int q = 0; q < Q; q++){
        LL d, x, t;
        cin >> d >> x >> t;
        LL v = 1;
        bool flag = false;
        for(int i = 0; i < d-1; i++){
            v *= x + i + 1;
            LL f = i + 1;
            v /= f;
            if(v > t){
                flag = true;
                break;
            }
        }
        //cerr << v << ", " << t << endl;
        if(flag){
            cout << "ZETUBOU" << endl;
        }else{
            cout << "AC" << endl;
        }
    }
    return 0;
}