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 Kotlin (1.0.0) (judge verdict: Accepted)

import java.util.Scanner

fun main(args: Array<String>){
    val scanner = Scanner(System.`in`)
    val result = D0427A(
                    interval     = scanner.nextInt()
                   ,createAmount = scanner.nextInt()
                   ,limit        = scanner.nextInt()
                 ).judge()
    println(result)
}

class D0427A(
  val interval:     Int
 ,val createAmount: Int
 ,val limit:        Int
){
    private val ADD_TO_LIMIT = 0.5
    fun judge(): Int{
        val timesCreated = ((limit + ADD_TO_LIMIT) / interval).toInt()
        return timesCreated * createAmount
    }
}