import java.io.PrintWriter;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        new Main();
    }

    public Main() {
        int n = dp.length;
        dp[0][0] = 1;
        for(int i=1;i<n;i++) {
            dp[i][0] = 1;
            for (int j = 1; j <= i; j++)
                dp[i][j] = Math.min(dp[i - 1][j] + dp[i - 1][j - 1], 1L << 61);
        }

        Scanner sc = new Scanner(System.in);
        PrintWriter pw = new PrintWriter(System.out);
        int q = sc.nextInt();
        for(int i=0;i<q;i++){
            D = Integer.parseInt(sc.next());
            X = Integer.parseInt(sc.next());
            T = Long.parseLong(sc.next());
            pw.println(solve());
        }
        pw.flush();

    }

    long[][] dp = new long[3010][3010];
    int D;
    int X;
    long T;
    private String solve(){
        long c = dp[X+D-1][D-1];
        if(c>T)
            return "ZETUBOU";
        else
            return "AC";
    }
}