title: create a new string with only the odd indexes of string
body: <p>I have to do the following thing"</p>
  
  <p><strong>Write a function that takes a string as input and returns a string composed of only the odd indexes of the string. Note: enumerate() is not available.</strong></p>
  
  <p>now the code I can come up with is </p>
  
  <pre><code>def odd_string(data):
      result = ""
      for i in (data):
      return data[0],data[2],data[4]
  
  print (odd_string("hello"))
  </code></pre>
  
  <p>how do i actually append these values to a string and how do I make it so that each odd number will be added(without having to write them all out)</p>