class Yukicoder
  def initialize
    a, b = gets.chomp.split.map(&:to_i)

    0.upto(200) do |i|
      0.upto(200) do |j|
        next if i == 0 && j == 0
        c = Rational(100 * i, i+j).round
        d = Rational(100 * j, i+j).round

        if a == c && b == d
          puts i+j
          return
        end
      end
    end
  end
end

Yukicoder.new