for j in range(int(input())):
    d, x, t = map(int, input().split())
    if d == 1:
        if 1 <= t:
            print("AC")
        else:
            print("ZETUBOU")
        continue
    x2 = min(x, d - 1)
    tmp = 1
    for i in range(x2):
        tmp *= (x + d - 1 - i)
        if i < x2:
            tmp //= (i + 1)
        if tmp > t:
            print("ZETUBOU")
            break
    else:
        print("AC")