(defun main ()
  (let ((a (read)) (b (read)))
    ; 片方がもう片方の2倍以上ならば、"No"を出力. そうでなければ"Yes"を出力.
    (if (<= (* 2 a) b)
        (format t "~a~%" "No")
        (format t "~a~%" "Yes"))))

(main)