title: Append dot before each letters
body: <p>I want to add a point before each letter.
  Unfortunately, the point is after each letter. How to insert the point before each letter?</p>
  
  <pre><code>myText = str(input())
  vowels = ['a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U']
  result = ''
  for letter in myText:
      if letter not in vowels:
          result = result + letter
          for i in result:
              result = result + '.'
              break
  
  print(result.lower())
  </code></pre>