import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

def cmb(n, r):
    if r < 0 or r > n:
        return 0
    r = min(r, n-r)
    x = 1
    for i in range(n-r+1, n+1):
        x *= i
    y = 1
    for i in range(1, r+1):
        y *= i
    return x//y

q = int(input())
for _ in range(q):
    d, x, t = map(int, input().split())
    c = cmb(x+d-1, d-1)
    if c > t:
        print('ZETUBOU')
    else:
        print('AC')