import strutils, sequtils

const inf = 987654321987654321

# nHr(n, r) = nCr(n+r-1, r)
proc pascal(n: int) : seq[seq[int]] =
  result = newSeqWith(n, newSeq[int](0))
  for i in 0.. <n:
    result[i] = newSeqWith(i+1, 0)
    for j in 0.. i:
      result[i][j] = if (i==0 or j==0 or i==j): 1 else: result[i-1][j] + result[i-1][j-1]
      if result[i][j] > inf:
        result[i][j] = int(inf + 1)

var
  q = stdin.readLine.parseInt
  nCr = pascal(3010)

for i in 0.. <q:
  var
    dxt = stdin.readLine.split.map(parseInt)
    d = dxt[0]
    x = dxt[1]
    t = dxt[2]
  echo if nCr[d+x-1][x] <= t: "AC" else: "ZETUBOU"