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HS08RBRT - Attractive Loan

Once upon a time Robert took a bank loan. The interest rate, which appeared to be "one percent", looked extremely attractive. Unhappily, it turned out that he had not read the fine print of the contract carefully. The installments have to paid on each of 50 subsequent Mondays. This weekly payment consists of two parts: the so called capital part (paying back the original loan) and the interest part. The capital part is 2% of the loan amount, and the interest part is equal to 1% of the part of the loan amount which still remains to be paid. The resulting sum is rounded to full Euros (rounding is always up).

Compute the total sum that Robert will have to pay back.

Input

Positive integer 0 < X <= 100000 - the loan amount.

Output

The sum of all Robert payments.

Example 1

Input:
1

Output:
50

Example 2

Input:
1500

Output:
1905

Scoring

For solving this problem you will score 10 points.


Added by:kuszi
Date:2008-09-12
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:ADA95 ASM32 BASH BF C CSHARP CPP C99 CLPS LISP sbcl LISP clisp D FORTRAN HASK ICON ICK JAVA LUA NEM NICE OCAML PAS-GPC PAS-FPC PERL PHP PIKE PRLG-swi PYTHON RUBY SCM guile SCM qobi ST TEXT WHITESPACE
Resource:High School Programming League 2008/2009

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