#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string>
#include<iostream>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include <sstream>
#include<iomanip>
#include <ctype.h>
#include <fstream>
#include <cassert>
//#include <bits/stdc++.h>
using namespace std;

//#include<bits/stdc++.h>


	
int main() {
	int n;
	cin >> n;
	while (n--) {
		long long int a, b, c;
		cin >> a >> b >> c;
		long long int ans = 1;
		for (int i =1; i < a; i++) {
			ans = ans*(b + i) / i;
			if (ans > c)break;
		}
		
		if (ans <= c)cout << "AC" << endl;
		else cout << "ZETUBOU" << endl;

	}

	return 0;
}