title: Python Range() for positive and negative numbers
body: <p>Okay, so I'm trying to write a simple program that gives me both the positive
  and negative range of the number given by the user.</p>
  
  <p>For example, if the user gives number 3 then the program should prints out
  -3 -2 -1 0 1 2 3</p>
  
  <p>I've tried thinking but just can't think how to get the negative range outputs.
  But the code I got below only gives me the positive range outputs, so I was
  thinking may I need to do to make it gives me both the positive and negative
  outputs.</p>
  
  <pre><code> s = int(input("Enter a number "))
   for i in range(s+1):
       print i+1
  </code></pre>