Problem Statement

Let us assume that water pressure depends only on depth and is $\dfrac{x}{100} megapascal at a$ depth of x meters.
What is the water pressure in megapascals at a depth of D meters?

Input

Input is given from Standard Input in the following format:
D

Output

Print the answer. Your output will be considered correct when its absolute or relative error from our answer is at most 10^{-3}.

Constraints

• $1 \leq D \leq 10000$
• D is an integer.

Sample Input 1

1000

Sample Output 1

10

The water pressure at a depth of 1000 meters is 10 megapascal. Outputs such as 10.0 and 9.999999 would also be accepted.

Sample Input 2

50

Sample Output 2

0.5

Sample Input 3

3141

Sample Output 3

31.41

见题面 Input 部分

见题面 Output 部分