1965A - Everything Nim - CodeForces Solution

t = int(input())
for _ in range(t):
  n = int(input())
  an = list(map(int, input().split()))
  an.sort()
  maxsize = an[-1]
  mexsize = 1
  for sz in an:
    if sz == mexsize:
      mexsize += 1

  if mexsize > maxsize:
    print("Alice" if maxsize % 2 == 1 else "Bob")
  else:
    print("Alice" if mexsize % 2 == 1 else "Bob")