Q=int(raw_input())
for i in range(Q):
    D,X,T=map(int,raw_input().split())
    t=1
    for d in range(D-1):
        t*=(X+1+d)
        t/=d+1
        if t>T:
            break
    if t <= T:
        print "AC"
    else:
        print "ZETUBOU"