def combination(n, r, lim):
    if n < r or r < 0:
        return 0
    s = 1.0
    for i in range(1, r+1):
        s *= (n-i+1) / i
        if s > lim:
            break
    return int(s)

N = int(input())
for _ in range(N):
    D, X, T = map(int, input().split())
    s = combination(D+X-1, D-1, T)
    print('ZETUBOU' if s > T else 'AC')