def nCr(n,r,T):
    r=min(r,n-r)
    a=b=1
    while r:
        a*=n; b*=r
        n-=1; r-=1

        if a>b*T:
            return False
    return True

Q=int(input())

for _ in range(Q):
    D,X,T=map(int,input().split())
    print("AC" if nCr(D+X-1,D-1,T) else "ZETUBOU")