defmodule Main do 
  def main do 
    l = IO.gets("") |> String.trim |> String.to_integer
    m = IO.gets("") |> String.trim |> String.to_integer
    n = IO.gets("") |> String.trim |> String.to_integer
    sum = l+m*25+n*100 |> rem(1000)
    nn = div(sum,100)
    mm = rem(sum,100) |> div(25)
    ll = rem(sum,100) |> rem(25)
    nn + mm + ll |> IO.puts
  end
end