text: """
  Given an ip address in dotted-decimal representation, determine the
  binary representation. For example,
  decimal_to_binary(255.0.0.5) returns 11111111.00000000.00000000.00000101
  accepts string
  returns string
  """
  
  def decimal_to_binary_util(val):
      bits = [128, 64, 32, 16, 8, 4, 2, 1]
      val = int(val)
      binary_rep = ''
      for bit in bits:
          if val >= bit:
              binary_rep += str(1)
              val -= bit
          else:
              binary_rep += str(0)
  
      return binary_rep
  
  def decimal_to_binary_ip(ip):
      values = ip.split('.')
      binary_list = []
      for val in values:
          binary_list.append(decimal_to_binary_util(val))
      return '.'.join(binary_list)
  