title: How to store a list of numbers generated as output in Python?
body: <p>Suppose I want to add several numbers together like:
  1. Find even numbers between 1-100.
  2. Find odd numbers between 2-200.
  3. Add them.</p>
  
  <p>So for this, I can check for even numbers and odd numbers respectively, but to add them, they must be stored somewhere. Now how can I do this?</p>
  
  <p>i.e. store the output of the first step, store the output of second step and then add them together.</p>