from operator import mul
from functools import reduce

def cmb(n,r):
    r = min(n-r,r)
    if r == 0: return 1
    over = reduce(mul, range(n, n - r, -1))
    under = reduce(mul, range(1,r + 1))
    return over // under

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