require 'bigdecimal'

class Yukicoder
  def initialize
    p, q = gets.chomp.split(' ').map(&:to_f)

    p1 = (1 - BigDecimal(p.to_s)) * q
    p2 = p * (1 - BigDecimal(q.to_s)) * q

    puts (p1 < p2)? 'YES' : 'NO'
  end
end

Yukicoder.new