object Main extends App {
	val N = scala.io.StdIn.readInt
	val DX = scala.io.StdIn.readLine.split(" ").map(_.toInt)
	val a = new Array[Int](N)

	for(i<-0 until N){
		a(i) = scala.io.StdIn.readInt
	}

	var ans = DX(1) + N
	var i = 1

	var b = a

	while(b.size != 0){
		b = a.map(z => i*z + 1).filter(_ <= DX(0))
//		println(b.mkString(" "))
		ans += b.size
		i += 1
	}

	println(ans)
}