let ``No.191 供託金``() =

  let n = stdin.ReadLine() |> int
  stdin.ReadLine().Split(' ')
  |> Array.map (int)
  |> fun args ->
    args
    |> Array.sumBy (fun n -> if (n*10) <= (args |> Array.sum) then 30 else 0 )
  |> stdout.WriteLine    

``No.191 供託金``()