Problem Statement

We have a drink that has $A$ kilocalories of energy per $100$ milliliters. How many kilocalories of energy does $B$ milliliters of this drink have?

Constraints

• $0 \\leq A, B \\leq 1000$
• All values in input are integers.

Input

Input is given from Standard Input in the following format:

$A$ $B$

Output

Print a number representing the answer.

Your output is considered correct when its absolute or relative error from our answer is at most $10^{-6}$.

Sample Input 1

45 200

Sample Output 1

90

We have a drink that has $45$ kilocalories of energy per $100$ milliliters. $200$ milliliters of this drink has $90$ kilocalories of energy.

Sample Input 2

37 450

Sample Output 2

166.5

The answer may not be an integer.

Sample Input 3

0 1000

Sample Output 3

0

Sample Input 4

50 0

Sample Output 4

0