#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

ll Q;

int main(void){
    
    cin >> Q;
    for(int i = 0; i < Q; ++i){
        ll D, X, T; cin >> D >> X >> T;
        ll ans = 1;
        for(int x = 1; x < D; ++x){
            ans = ans * (X + x) / x;
            if(ans > T) break;
        }
        
        if(ans <= T) cout << "AC" << endl;
        else cout << "ZETUBOU" << endl;
    }
    
    return 0;
}