class Vehicle(object):
    def __init__(self, speed, number, color):
        self.speed = speed
        self.number = number
        self.color = color
        
    def start(self):
        print "Starting"
        
    def stop(self):
        print "Stopping"
    
    def accelerate(self):
        print "accelerating"
        
    def break_(self):
        print "breaking.."
        
x = 10
y = 20

