class Display():
    
    def __init__(self):
        self.start = "Welcome"
        self.draw = "Draw"

    def show(self, text):
        print text

class Display():
    
    def __init__(self):
        self.start = "Welcome"
        self.draw = "Draw"
        self.computer = "Computer Wins"

    def show(self, text):
        print text

add computer wins to display messages