Problem:
Score : 100 points

Problem Statement

A biscuit making machine produces B biscuits at the following moments: A seconds, 2A seconds, 3A seconds and each subsequent multiple of A seconds after activation.

Find the total number of biscuits produced within T + 0.5 seconds after activation.

Constraints

All values in input are integers.

1 \leq A, B, T \leq 20

Input

Input is given from Standard Input in the following format:

A B T

Output

Print the total number of biscuits produced within T + 0.5 seconds after activation.

Sample Input 1

3 5 7

Sample Output 1

10

Five biscuits will be produced three seconds after activation.

Another five biscuits will be produced six seconds after activation.

Thus, a total of ten biscuits will be produced within 7.5 seconds after activation.

Sample Input 2

3 2 9

Sample Output 2

6

Sample Input 3

20 20 19

Sample Output 3

0

Solution in Scala (2.11.7) (judge verdict: Accepted)

object Main extends App {
  var read = scala.io.StdIn.readLine()
  val array =  read.split(" ").map(_.toInt).toVector
  var a = array(0)
  var b = array(1)
  var t = array(2)
  var count = 0
  var sec = 0
  while((a + sec) < (t + 0.5) ) {
    sec = a + sec
    count += b
  }
  print(count)
}