class Worker:      def __init__(self, name, pay):                      self.name = name                                self.pay  = pay        def lastName(self):          return self.name.split(  )[-1]                def giveRaise(self, percent):          self.pay *= (1.0 + percent )              bob = Worker('A', 50000)                sue = Worker('B', 60000)                print bob.lastName(  )                          print sue.lastName(  )                          sue.giveRaise(.10)                              print sue.pay