fun main(args: Array<String>){
  readLine()
  val ss = readLine()!!.split(" ").map { it.toInt() }.toMutableList()
  val max = ss.max()
  val maxindex = ss.indexOf(max)
  ss.removeAt(maxindex)
  val n = ss.map { it/2 }.reduce { y,x -> y+x }
  println(max!! + n)
}