class Calc0159
  def initialize(args)
    args = args.map { |l| l.chomp.split(/\s+/) }
    @p, @q = args.shift.map(&:to_f)
  end

  def calc
    (1 - @p) * @q < @p * (1 - @q) * @q
  end

  def run
    calc ? 'YES' : 'NO'
  end
end

puts Calc0159.new(STDIN.readlines).run if __FILE__ == $0