def combination(n, r, limit):
    res = 1
    t = r - 1
    while t >= 0 and res < limit:
        res = res * (n - t) // (r - t)
        t -= 1
    return res

q=int(input())
for _ in range(q):
    d,x,t=map(int, input().split())
    program = combination(d+x-1,d-1,t)
    if program > t:
        print('ZETUBOU')
    else:
        print('AC')