import java.util.Scanner;

public class Main{
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int Q = scan.nextInt();
		StringBuilder sb = new StringBuilder();
		for(int i = 0; i < Q; i++) {
			long D = scan.nextLong();
			long X = scan.nextLong();
			long T = scan.nextLong();
			long k = 1;
			for(long j = 1; j < D; j++) {
				k = (k * (X + j))/ j;
				if(k > T) {
					break;
				}
			}
			if(k <= T) {
				sb.append("AC").append("\n");
			}else {
				sb.append("ZETUBOU").append("\n");
			}

		}
		scan.close();
		System.out.println(sb.toString());
	}
}