defmodule Main do
  def main do
    IO.read(:line)
    |> String.trim()
    |> String.split()
    |> Enum.map(&String.to_integer/1)
    |> solve
    |> IO.puts()
  end

  def solve(a) do
    a
    |> Enum.map(fn b ->
      x = b |> rem(3) == 0
      y = b |> rem(5) == 0

      cond do
        x || y ->
          cond do
            x -> 4
            true -> 0
          end +
            cond do
              y -> 4
              true -> 0
            end

        true ->
          b |> to_string |> String.length()
      end
    end)
    |> Enum.sum()
  end
end