for _ in range(int(input())):
    d, x, t = map(int, input().split())
    res = 1
    for i in range(min(d - 1, x)):
        res *= d + x - 1 - i
        res //= i + 1
        if res > t:
            break
    if res <= t:
        print("AC")
    else:
        print("ZETUBOU")