(defun main ()
  (let* ((s1 (read))
         (s2 (read)))
    (princ (cond
            ((not (or (eq s1 'SAT) (eq s1 'SUN))) "8/31")
            ((not (or (eq s2 'SAT) (eq s2 'SUN))) "8/32")
            (t "8/33")))
    (terpri)))
(main)