title: how to find the middle number in python
body: <p>Given 3 numbers, I need to find which number lies between the two others.</p>
  
  <p>ie,given 3,5,2
  I need 3 to be returned.</p>
  
  <p>I tried to implement this by going thru all three and using if else conditions to check if each is between the other two.But this seems a naive way to do this.Is there a better way?</p>