n = int(input())


def query(inlist):
    d, x, t = inlist

    ans = 1

    def check(y):
        if y > t:
            return -1
        else:
            return 0

    x = x + d - 1
    d = d - 1
    d = min(d,x-d)

    a, b = 1, 1
    check(a//b)
    if  check(a//b) == -1:
        ans = -1

    for i in range(d):
        a *= x-i
        b *= d-i

        if  check(a//b) == -1:
            ans = -1
            break

    if ans == -1:
        print("ZETUBOU")
    else:
        print("AC")
    return

for i in range(n):
    query([ int(v) for v in input().split() ])