text: """
  File: largest_digit.py
  Name:
  ----------------------------------
  This file recursively prints the biggest digit in
  5 different integers, 12345, 281, 6, -111, -9453
  If your implementation is correct, you should see
  5, 8, 6, 1, 9 on Console.
  """
  
  
  def main():
  	print(find_largest_digit(12345))      # 5
  	print(find_largest_digit(281))        # 8
  	print(find_largest_digit(6))          # 6
  	print(find_largest_digit(-111))       # 1
  	print(find_largest_digit(-9453))      # 9
  
  
  def find_largest_digit(n):
  	"""
  	:param n:
  	:return:
  	"""
  	if n < 0:
  		n = n*-1
  	return find_largest_digit_helper(n, 0)
  
  
  def find_largest_digit_helper(n, lar):
  	"""
  	:param n:
  	:param lar:
  	:return:
  	"""
  	if n < 10:
  		if n > lar:
  			return n
  		return lar
  	else:
  		num = n % 10
  		if num > lar:
  			lar = num
  		new_n = n//10
  		return find_largest_digit_helper(new_n, lar)
  
  
  
  if __name__ == '__main__':
  	main()
  