import java.util.*

fun main(args: Array<String>) {
  val sc = Scanner(System.`in`)
  val n = sc.nextInt()
  val d = sc.nextInt()
  val x = sc.nextInt()
  val a = (1..n).map { sc.nextInt() }

  println(abc092b(n, d, x, a))
}

private fun abc092b(n: Int, d: Int, x: Int, a: List<Int>): Int {
  var count = 0

  for (ai in a) {
    var tmp = 0
    while (ai * tmp + 1 <= d) {
      tmp++
      count++
    }
  }

  return count + x
}
