import sys

def main():
    input = sys.stdin.read().split()
    Q = int(input[0])
    idx = 1
    for _ in range(Q):
        D = int(input[idx])
        X = int(input[idx+1])
        T = int(input[idx+2])
        idx +=3
        
        d = D -1
        if d == 0:
            if 1 <= T:
                print("AC")
            else:
                print("ZETUBOU")
            continue
        
        res = 1
        ok = True
        for i in range(1, d+1):
            numerator = X + i
            temp = res * numerator
            res_new = temp // i
            if res_new > T:
                ok = False
                break
            res = res_new
        
        if ok and res <= T:
            print("AC")
        else:
            print("ZETUBOU")

if __name__ == "__main__":
    main()