#include <bits/stdc++.h>
#define MAX 1500
#define TLE 1000000000000001
using namespace std;
typedef long long ll;

ll Q, N;

ll a[MAX + 10][MAX + 10] = {{0}};
ll nCr(ll n, ll r){
    for(int i = 0; i <= MAX; i++){
        for(int j = 0; j <= i; j++){
		    if(j == 0) a[i][j] = 1;
		    else a[i][j] = (a[i - 1][j] + a[i - 1][j - 1]);
        }
	}
	if(a[n][r] >= TLE) return TLE;
	else return a[n][r];
}

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