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: 118ms
Memory: 21432kB
Author: 15857516111
In contest: 1086 
m=100.00
n=input()
while n!=0:
	
	for i in range(1,n+1):
		m=m*0.7

	print '%.2f' % m

	m=100.00
	n=input()