class GenericInterator(object):
	"""docstring for GenericInterator"""
	def __init__(self):
		super(GenericInterator, self).__init__()
		self.y = 0
		
	def integrator(self, x):
		self.y = self.y + x
		return self.y

class GenericDerivator(object):
	"""docstring for GenericInterator"""
	def __init__(self):
		super(GenericDerivator, self).__init__()
		self.y = 0
		self.x_tmp1 = 0
		self.x_tmp2	= 0
		
	def derivator(self, x):
		self.y = x - self.x_tmp2
		self.x_tmp2 = self.x_tmp1
		self.x_tmp1 = x
		return self.y

if __name__ == "__main__":
	i0 = GenericInterator()
	i1 = GenericInterator()
	i2 = GenericInterator()
	c0 = GenericDerivator()
	c1 = GenericDerivator()
	c2 = GenericDerivator()
	for i in range(10):
		for j in range(32):
			i2.integrator(i1.y)
			i1.integrator(i0.y)
			i0.integrator(127)
			if j == 0:
				c0.derivator(i2.y)
				c1.derivator(c0.y)
				c2.derivator(c1.y)
				print i, j, i0.y, i1.y, " *** ", i2.y, c0.y, c1.y, c2.y, c2.y / 2**16