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

        if a//b>10**15:
            return 10**15+1
    return a//b

Q=int(input())

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