DWITE Online Computer Programming Contest, October 2009, Problem 1

Having decided to capitalize on your awesome programming skills, you've set out to create and sell a mobile application at $\mathrm{\$}0.99$ per copy. Since the application is hosted and distributed through a managed platform, the store gets to keep $30\mathrm{\%}$ from each sale.

Given that you have an idea of how much profit you want to make off your hard work, at least how many $1000$s of copies must be sold? (That is, the answer is rounded to the next $1000$).

The input will contain 5 lines, integers $0\le N\le 1000000$, the minimum profit you want to keep.

The output will contain 5 lines, integer value of the number of copies needed to be sold, rounded to the next $1000$.

For example: if you want to make $\mathrm{\$}1000$, then $(1444\text{ copies}\times \$0.99)-30\mathrm{\%}=\mathrm{\$}1000.692$. ($1443$ copies will earn below $\mathrm{\$}1000$). $1444$ rounded to the next $1000$ is $2000$; thus the answer is $2000$.

Sample Input

0
1
693
694
250000

Sample Output

0
1000
1000
2000
361000

Problem Resource: DWITE