def log2(x):
  out = 0
  while x > 0:
    x /= 2
    out += 1
  return out - 1

def break(x):
  x -= 1
  n = int(x ** 0.5)
  while x % n != 0:
    n -= 1
  return (n, x / n)

def A(k):
  dd