fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


fun printAns [] _ = ignore ()
  | printAns (h::tl) averageScore =
    (
      print (Int.toString (Real.floor (50.0 - (averageScore - (Real.fromInt h)) / 2.0)) ^ "\n");
      printAns tl averageScore
    )


val () =
    let
        val n = readInt ()
        val xs = List.tabulate (n, fn _ => readInt ())

        val averageScore = Real.fromInt (List.foldl (fn (x, acc) => x + acc) 0 xs) / (Real.fromInt n)

    in
        printAns xs averageScore
    end