Start: Apr, 17, 2017 10:00:00
Python程序设计基础培训第二次作业
End: Apr, 23, 2017 14:00:00
Time elapsed:
Time remaining:

Problem_ID: C
Result: Accepted
Time: 123ms
Memory: 21432kB
Author: 13600545642
In contest: 1086

while True:
    n=int(input())
    if n!=0:
        a=100.00*(0.7**n)
    else:
        break
    print  '%.2f' % a