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 Go (1.6) (judge verdict: Accepted)

package main

import (
  "bufio"
  "fmt"
  "os"
  "strconv"
)

func main() {
  sc := bufio.NewScanner(os.Stdin)
  sc.Split(bufio.ScanWords)

  sc.Scan()
  a, e := strconv.Atoi(sc.Text())
  if e != nil {
    panic(e)
  }
  sc.Scan()
  b, e := strconv.Atoi(sc.Text())
  if e != nil {
    panic(e)
  }
  sc.Scan()
  t, e := strconv.Atoi(sc.Text())
  if e != nil {
    panic(e)
  }


  fmt.Println(t / a * b)
}