fun main(args:Array<String>) {
    var (h,a) = readLine()!!.split(" ").map(String::toInt)
    var ans:Int = 0
    for (gomikasushineeeeeewwwwwwwwwwwwwwwwwwwwwwwww in 1..1000000) {
        ans++
        h -= a
        if (h <= 0) {
            println(ans)
            return
        }
    }
}