Python 21

Python 100 [Python 100] Python 100

10

(Python 2.0+)

#!/usr/bin/python # -*- coding: UTF-8 -*- x2 = 1 for day in range(9,0,-1): x1 = (x2 + 1) * 2 x2 = x1 print (x1)

1534

Python 100 [Python 100] Python 100