#include <iostream>
#include <algorithm>
#include <functional>
#include <string>
#include <climits>
#include <vector>
#include <numeric>
#include <complex>
#include <map>
#include <bitset>
using namespace std;

#define __int64 long long
#define long __int64
#define REP(i,a,b) for(int i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)
const int Vecy[4] = {0,-1,0,1};
const int Vecx[4] = {1,0,-1,0};

int func(long a, int &ue){
	int result = 0;
	long save;
	save = a;
	while(a > 0){
		a /= 10;
		save = a;
		result ++;
	}
	
	ue = save;
	return result;
}

int main(){
	int q;
	int d,x;
	long t;
	int maxd;
	double tester;
	int adjust = 0;
	int max_ad;
	int ue;
	cin >> q;
	rep(i,q){
		cin >> d >> x >> t;
		max_ad = func(t, ue);
		d --;
		//(d + x - 1)! <= d! * (x-1)! * t : ok
		maxd = max(d,x);		//maxの方を無効化
		int j;
		tester = 1;
		for(j = d + x; j>maxd; j--){
			tester *= j;
			tester /= (j - maxd);
			while(true){
				if(adjust < max_ad && tester >= 10){
					tester /= 10;
					adjust ++;
				}else{
					break;
				}
			}
			//cout << tester << endl;
			if(max_ad > adjust || (max_ad == adjust && tester > ue)){
				break;
			}
		}
		
		if(j == maxd){
			cout << "AC" << endl;
		}else{
			cout << "ZETUBOU" << endl;
		}
	}
	
    return 0;
}