import java.util.*;

public class Exercise120{
  public static void main (String[] args){

    Scanner sc = new Scanner(System.in);

    int n = sc.nextInt();
    for(int i = 0; i < n; i++){
      int d = sc.nextInt();
      int x = sc.nextInt();
      long t = sc.nextLong();
      int b = x + d - 1;
      long cal = 1;
      int min = Math.min(x, d - 1);
      for(int j = 0; j < min; j++){
        cal *= (b - j);
        cal /= (j + 1);
        if(cal > (long)Math.pow(10, 16)){
          break;
        }
      }
      if(cal > t || cal < 1){
        System.out.println("ZETUBOU");
      }else{
        System.out.println("AC");
      }
    }
	}
}