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