import sys

Q = raw_input()
for i in range(int(Q)):
    D, X, T = map(int, raw_input().split())
    a = 1
    p = X+1
    for j in range(D-1):
        a *= p
        p += 1
    p = 2
    for j in range(D-2):
        a /= p
        p += 1
    if T < a:
        print "ZETUBOU"
    else:
        print "AC"