object Main extends App{
val n = scala.io.StdIn.readInt()
val Array(d,x) = scala.io.StdIn.readLine().split("\\s").map(_.toInt)
var choco = x
for (i<-1 to n){
  val a = scala.io.StdIn.readInt()
  choco += (d-1)/a + 1
}
println(choco)
}