Start: Nov, 12, 2017 10:00:00
2017秋Python程序设计基础培训第二次作业
End: Nov, 19, 2017 12:00:00
Time elapsed:
Time remaining:
Problem_ID: C
Result: Accepted
Time: 87ms
Memory: 24436kB
Author: huangchongding
In contest: 1122 
n=int(input())
while n!=0:
  h=100              
  for i in range(1,n+1):
     h*=0.7
  print("%.2f"%h)
  n=int(input())