def readArray():
  return tuple(map(int, input().split()))

_, m, k = readArray()
a = readArray()
dedup = set(a)

def step(n, depth, current):
  candidates = tuple(filter(lambda x: n % x == 0, dedup))

  if depth == k:
    try:
      x = tuple(filter(lambda i: n == i, candidates))[0]
    except IndexError:
      return None
    else:
      return [*current, x]

  for i in candidates:
    x = step(n // i, depth + 1, [*current, i])
    if x == None:
      continue
    else:
      return x

  return None

print([1 + a.index(i) for i in step(m, 1, [])])