q = int(input())
for _ in [0] * q:
    d, x, t = [int(i) for i in input().split()]
    s = 1
    for d in range(d - 1):
        s = s * (x + 1 + d) // (d + 1)
        if s > t: break
    print("AC" if s <= t else "ZETUBOU")