fun main(args: Array<String>) {
    var N = readLine()!!.toInt()
    var (D,X) = readLine()!!.split(" ").map(String::toInt)
    (1..N).map{
        var a = readLine()!!.toInt()
        if(D%a == 0) (D/a).toInt()
        else (D/a).toInt() + 1
    }.sum().let{
        println(it+X)
    }
}
