Q = int(input())

for _ in range(Q):
    D,X,T = map(int,input().split())
    temp = 1
    r = min(X-1,D-1)
    for i in range(r):
        temp *= (D+X-i-1)//(i+1)
        if temp>T: 
            break
    if T>=temp:
        print('AC')
    else:
        print('ZETUBOU')