q = int(input())
for _ in range(q):
    d, x, t = map(int, input().split())
    if d == 1:
        c = 1
    else:
        c = 1
        for i in range(x, x+d):
            c *= i
        r = 1
        for j in range(1, d):
            r *= j
        c //= r
    if c > t:
        print('ZETUBO')
    else:
        print('AC')