text: s1 = "   Good Morning   "
  print(s1) # -- S1
  print(len(s1)) # -- S2
  print( s1.strip())# -- S3
  print(len(s1.strip())) # -- S4
  s2 = "  Python and C#"
  print(s2.strip()) # -- S5
  print(s2.strip('#')) # -- S6
  s3 = "www.abc.com/"
  print(s3.strip('@')) # -- S7
  s4 = 'apple,...ssssssssw'
  print(s4.strip(',.ws')) # -- S8
  print(s4.strip('ws.,')) # -- S9
  s5 = '#banana#'
  print(s5.strip('#')) # -- S10
  print(s5.rstrip('#')) # -- S11
  print(s5.lstrip('#')) # -- S12