title: code to reverse any given string in python using basic python operators
body: <p>I am new to programming. I am trying to write a code to print the reverse of any given string.
  I have written the following code:</p>
  
  <pre><code>import math
  string= raw_input ("Enter string")
  n= len(string)
  ol= n-1
  for ol&gt;-1,ol--:
      print string[ol]
  </code></pre>
  
  <p>but i am getting syntax error. Please help me to figure this out.</p>