def count(num):
  print("count for {}:".format(num))
  while True:
    i = int(num)
    if num == i:
      break
    num *= 10

  num = int(num)

  length = 1
  while True:
    num /= 10
    if num == 0:
      break
    length += 1

  print("  length = {}".format(length))

count(10)
count(100)
count(1001)
count(100.1)
count(100.01)
count(1001.001)
count(100.1001)
count(1001.1001)

def count(num):
  print("count for {}:".format(num))
  while True:
    i = int(num)
    if num == i:
      break
    num *= 10

  num = int(num)

  length = 1
  while True:
    num /= 10
    if num == 0:
      break
    length += 1

  print("  length = {}".format(length))

count(10)
count(100)
count(1001)
count(100.1)
count(100.01)
count(1001.001)
count(100.1001)
count(1001.1001)