(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((ha (read))
         (wa (read))
         (hb (read))
         (wb (read))
         (hc (read))
         (wc (read))
         (h1 (list 'A ha wa))
         (h2 (list 'B hb wb))
         (h3 (list 'C hc wc))
         (h (list h1 h2 h3)))
    (dolist (item (mapcar #'car (sort h
                                    (lambda (x y)
                                      (if (= (second x) (second y))
                                          (< (third x) (third y))
                                          (> (second x) (second y)))))))
      (format t "~a~%" item))))

(main)