old_contents: print 2**3
  print pow(2,3)
  print abs(-10)
  print round(1.536,2)
  print 1/2
  print 1.0//2.0
  print 0xAF
  print 010
  import cmath
  print cmath.sqrt(-1)
  import math
  print math.floor(32.8)
  
new_contents: #!/usr/local/bin/python
  print 2**3
  print pow(2,3)
  print abs(-10)
  print round(1.536,2)
  print 1/2
  print 1.0//2.0
  print 0xAF
  print 010
  import cmath
  print cmath.sqrt(-1)
  import math
  print math.floor(32.8)
  
subject: Add #!.