https://www.acmicpc.net/problem/15726
import java.util.*
import java.lang.String.format
fun main(args: Array<String>) {
val s=Scanner(System.`in`)
var a=s.nextDouble()
var b=s.nextDouble()
var c=s.nextDouble()
var sum=(a*b/c).toInt()
var sum1=(a/b*c).toInt()
print(Math.max(sum,sum1))
}