#include <iostream>
using namespace std;
typedef unsigned long long int64;

int main(void)
{
    int q;
    cin >> q;
    for(int i = 0; i < q; i++) {
        int64 d, x, t;
        cin >> d >> x >> t;
        int64 m = d - 1;
        int64 n = x + m;
        m=min(m,n-m);
        int64 p = 1;
        bool is_out = false;
        for(int64 j = 1; j <= m; j++) {
            p *= n - j + 1;
            p/=j;
            if(p > t) {
                is_out = true;
                break;
            }
        }
        if(!is_out)
            cout << "AC" << endl;
        else
            cout << "ZETUBOU" << endl;
    }
    return 0;
}