template times*(n:int,body) = (for _ in 0..<n: body)
proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc scan(): int =
  while true:
    var k = getchar_unlocked()
    if k < '0': break
    result = 10 * result + k.ord - '0'.ord
proc printf(formatstr: cstring){.header: "<stdio.h>", varargs.}

let q = scan()
q.times:
  let d = scan() # 深さ
  let x = scan()
  let t = scan()
  var ans = 1.0
  var ok = true
  for i in 1..(d-1):
    ans *= (x + i) / i
    if ans <= t.float : continue
    ok = false
    printf("ZETUBOU\n")
    break
  if ok : printf("AC\n")