class Calc0032
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @l = args.shift.first.to_i
    @m = args.shift.first.to_i
    @n = args.shift.first.to_i
  end

  def run
    t = @l * 100 + @m * 25 + @n
    c100 = (t % 1000) / 100
    c25 = (t % 100) / 25
    c1 = t % 25
    c100 + c25 + c1
  end
end

puts Calc0032.new(STDIN.readlines).run if __FILE__ == $0