object Main extends App {
  val inputs: Seq[String] = scala.io.Source.stdin.getLines().toList
  val nums = inputs.head.split(" ").map(_.toInt)

  println(solve(nums(0), nums(1), nums(2)))

  def solve(perTime: Int, bake: Int, time: Int): Int = {
    perTime match {
      case t if t <= 0 => 0
      case _ => {
        val bakedNum = time / perTime
        bake * bakedNum
      }
    }
  }
}