from functools import reduce

def comb(n, r):
    if n < 0 or r < 0 or r > n:
        return 0
    r = min(r, n - r)
    if r == 0: return 1

    numer = [n - r + i + 1 for i in range(r)]
    denom = [i + 1 for i in range(r)]

    for i in range(1, r):
        divisor = denom[i]
        if divisor > 1:
            offset = (n - r) % (i + 1)
            for j in range(i, r, i+1):
                numer[j - offset] //= divisor
                denom[j] //= divisor

    return reduce(lambda x, y: x*y if y > 1 else x, numer)


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