defmodule Main do
  def main do
    [n, p] = li()
    ans = n - n*(p/100)
    IO.puts floor(ans)
  end

  def input, do: IO.read(:line) |> String.trim
  def ii, do: input() |> String.to_integer
  def li, do: input() |> String.split |> Enum.map(&String.to_integer/1)
end