new_contents: x = [5,3,5,2,9,5,2,7]
  
  y = x[:]              // Duplicate the entire list without skipping
  
  z = y.sort()          // Sort its numerical order
  
  print(x)
  print(z)
  
  z = [2,2,3,5,5,7,9] 
  
  z = z[2:5]            // Try this, it will print [3,5,5]
  
subject: Create list_sort.py