import sys
input=lambda: sys.stdin.readline().rstrip()

q=int(input())
for _ in range(q):
  d,x,t=map(int,input().split())
  res=1
  if d==1:
    if t==0:
      print("ZETUBOU")
    else:
      print("AC")
  else:
    for i in range(1,d):
      res=(res*(x+i))//i
      if res>t:
        print("ZETUBOU")
        break
      else:
        continue
    else:
      print("AC")