class b():
    def __init__(self,cw):

        self.pk=50
        print(cw)
        print(self.pk)
    def change(hari):
        print("the num is  %d" % hari.cw)

    def range(self,text):
        self.text=text
        print(text)
bill=b(10)
bill.range("hari")
